--- product_id: 39862083 title: "FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink)" brand: "fresh knight" price: "¥4056" currency: JPY in_stock: true reviews_count: 13 category: "Fresh Knight" url: https://www.desertcart.jp/products/39862083-fresh-knight-retainer-case-2-pack-retainer-case-with-vent store_origin: JP region: Japan --- # Vent holes for odor control Dishwasher safe for hygiene Durable BPA-free plastic FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) **Brand:** fresh knight **Price:** ¥4056 **Availability:** ✅ In Stock ## Summary > 💖 Keep your smile fresh and flawless—anywhere, anytime! ## Quick Answers - **What is this?** FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) by fresh knight - **How much does it cost?** ¥4056 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/39862083-fresh-knight-retainer-case-2-pack-retainer-case-with-vent) ## Best For - fresh knight enthusiasts ## Why This Product - Trusted fresh knight brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Freshness That Lasts:** Strategic vent holes keep your orthodontic devices dry and stink-free, so you always carry confidence. - • **Reliable Snap Closure:** Secure latch mechanism ensures your devices stay protected, while easy-open design fits your busy lifestyle. - • **Effortless Cleanliness:** Dishwasher safe design lets you sanitize your cases quickly, maintaining a pristine environment for your smile. - • **Perfect Fit, Sleek Profile:** Slim yet spacious enough to hold upper and lower retainers, mouth guards, or dentures without bulk. - • **Double the Protection, Double the Convenience:** Two cases per pack means one at home, one on the go—never lose or misplace your retainer again. ## Overview The FRESH KNIGHT Retainer Case 2-Pack offers durable, BPA-free plastic cases with vent holes to prevent odor and moisture buildup. Designed to hold multiple orthodontic devices securely, these slim, dishwasher-safe cases provide practical, hygienic storage with a reliable snap closure. Perfect for professionals on the move, they ensure your retainers, mouth guards, or dentures stay fresh, clean, and protected wherever life takes you. ## Description Your Best Smile Forward Visit the Store Your Best Smile Forward Visit the Store Review: Well made and practical - These are sturdy, practical cases that easily fit a standard ("Hawley") style upper retainer with room to spare. They are just slightly larger, but otherwise nearly identical to the case provided by the local orthodontist. Shopping for retainer cases on desertcart will make you crazy, so it was a big relief to get a product that had no problems and indeed seemed very well made. They are *not* glamorous but they sure are practical. The latch mechanism lines up perfectly straight, closes securely. There are two air holes in the lid (the slightly thinner half) for ventilation and to allow moisture to escape. Most likely you'd want to leave the case open to really dry completely. The bottom *might* be deep enough to "bathe" a retainer or other device in cleaner, mouthwash, or whatever. Did not try that experiment yet. Also can't comment on longterm use, wearing out or breakage as it has only been a couple of weeks. But these things really look solid, so we're not expecting any bad news. Obviously, since you get two at a time, you have a spare if one should have a problem down the road. On a unit basis these are not the cheapest cases on desertcart, not the biggest, not the smallest, not the most colorful. But we are glad for the purchase as they seem reliable and truly practical for their intended purpose, of temporary storage of a retainer in a safe place. UPDATE after two years -- if you use these a lot, open and close frequently etc. you will wear out the plastic which forms the hinge on the case. This is predictable and frankly pretty impressive, ours are not shot but the signs of plastic fatigue are there and it won't be long. If you use two and alternate between them they will last longer; if you are super lucky you might not even need the retainer all that long. Anyway I would not lower the review score, they do work as planned. Only extra comment is, you will probably want to clean them regularly because the air holes are not enough to really dry out or sanitize the interior. Still recommended. Review: Great value for a good product - For 2 this is such a great price! The retainer case size is great and it can fit ANY mouth guard or retainer including my very bulky shock doctor and anything smaller. Including my SD Nano and even my night guard retainers, without anything falling out like the shock doctor case. The case is a great size to hold anything. It is well vented on top, with 2 holes while fully enclosed keeping your guard protected and clean. You can attach a strap (not included) to the holes on the front of the case where you open - if you want to carry it that way. I just keep it in my bag. Sturdy well made material. Case opens and closes with ease. Stays closed when it should. Opens easily when you need it. Can’t say the same for my SD which is awkward especially when opening. I was so happy to find this great product after overpaying for a shock doctor case. I bought the shock doctor case and it was a bust barely usable for most retainers and mouth guards. It was the same price but with only 1 case and several design flaws. For SD there is a huge gap in the front which means smaller mouth guards and retainers can fall out or poke out half way with the large gap (nano). Not to mention other things like loose change and powder can get in. I’ve retired the overpriced shock doctor case for these great cases. Still love my SD mouth guards but for travel, cleanliness and portability I trust these retainer cases. ## Features - Set of 2 Fresh Knight retainer cases so you can keep one at home and the other on the go! Maintain your orthodontic devices safe and protected anywhere you go. No more wrapping your aligner in a yucky napkin or sticking it directly in your back pocket! No more lost retainers! - This retainer container is slim and easy to carry everywhere, yet big enough to hold 2 pieces of upper and lower retainers or aligners. It's perfect to hold mouth guards and some dentures too - Stink Proof! Vent holes in this retainer holder keep your orthodontic devices fresh and dry while they are stored. The vents help prevent build-up that may cause unwanted smells - Dishwasher Safe for quick and easy cleaning. Place in the dishwasher regularly to make sure your retainer cases stay squeaky clean. And since it comes in a 2 pack, you can always use one while the other is in the dishwasher - Fresh Knight aligner cases are the best in the industry: easy to open, easy to close, and easy to clean. Made of durable BPA-free materials and made in the USA. Available in every color of the rainbow! ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01ACE51BQ | | Best Sellers Rank | #135,338 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #208 in Sports Mouthguards | | Brand Name | FRESH KNIGHT | | Closure Type | Snap | | Color | Pink | | Customer Reviews | 4.4 out of 5 stars 5,369 Reviews | | Handle Type | Top handle (high confidence) | | Item Dimensions L x W x H | 3"L x 3"W x 1.5"H | | Item Weight | 0.02 Pounds | | Manufacturer | FRESH KNIGHT | | Manufacturer Part Number | KD100PARENT | | Material Type | Plastic | | Model Number | KD100PARENT | | Number of Compartments | 1 | | Pattern | Solid | | Size | 1 Box | | Style Name | Classic | | UPC | 040201616297 | | Unit Count | 2.0 Count | ## Images ![FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) - Image 1](https://m.media-amazon.com/images/I/71g-r4C7L7L.jpg) ![FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) - Image 2](https://m.media-amazon.com/images/I/81CF4MOq27L.jpg) ![FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) - Image 3](https://m.media-amazon.com/images/I/91RSsjMiAFL.jpg) ![FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) - Image 4](https://m.media-amazon.com/images/I/81MPUyIDOjL.jpg) ![FRESH KNIGHT Retainer Case (2 Pack). Retainer Case with Vent Holes. Perfect for Denture, Mouth Guard, Aligners. (Bright Pink) - Image 5](https://m.media-amazon.com/images/I/71FEL1JlVpL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Well made and practical *by A***S on December 29, 2015* These are sturdy, practical cases that easily fit a standard ("Hawley") style upper retainer with room to spare. They are just slightly larger, but otherwise nearly identical to the case provided by the local orthodontist. Shopping for retainer cases on Amazon will make you crazy, so it was a big relief to get a product that had no problems and indeed seemed very well made. They are *not* glamorous but they sure are practical. The latch mechanism lines up perfectly straight, closes securely. There are two air holes in the lid (the slightly thinner half) for ventilation and to allow moisture to escape. Most likely you'd want to leave the case open to really dry completely. The bottom *might* be deep enough to "bathe" a retainer or other device in cleaner, mouthwash, or whatever. Did not try that experiment yet. Also can't comment on longterm use, wearing out or breakage as it has only been a couple of weeks. But these things really look solid, so we're not expecting any bad news. Obviously, since you get two at a time, you have a spare if one should have a problem down the road. On a unit basis these are not the cheapest cases on Amazon, not the biggest, not the smallest, not the most colorful. But we are glad for the purchase as they seem reliable and truly practical for their intended purpose, of temporary storage of a retainer in a safe place. UPDATE after two years -- if you use these a lot, open and close frequently etc. you will wear out the plastic which forms the hinge on the case. This is predictable and frankly pretty impressive, ours are not shot but the signs of plastic fatigue are there and it won't be long. If you use two and alternate between them they will last longer; if you are super lucky you might not even need the retainer all that long. Anyway I would not lower the review score, they do work as planned. Only extra comment is, you will probably want to clean them regularly because the air holes are not enough to really dry out or sanitize the interior. Still recommended. ### ⭐⭐⭐⭐⭐ Great value for a good product *by B***2 on June 12, 2021* For 2 this is such a great price! The retainer case size is great and it can fit ANY mouth guard or retainer including my very bulky shock doctor and anything smaller. Including my SD Nano and even my night guard retainers, without anything falling out like the shock doctor case. The case is a great size to hold anything. It is well vented on top, with 2 holes while fully enclosed keeping your guard protected and clean. You can attach a strap (not included) to the holes on the front of the case where you open - if you want to carry it that way. I just keep it in my bag. Sturdy well made material. Case opens and closes with ease. Stays closed when it should. Opens easily when you need it. Can’t say the same for my SD which is awkward especially when opening. I was so happy to find this great product after overpaying for a shock doctor case. I bought the shock doctor case and it was a bust barely usable for most retainers and mouth guards. It was the same price but with only 1 case and several design flaws. For SD there is a huge gap in the front which means smaller mouth guards and retainers can fall out or poke out half way with the large gap (nano). Not to mention other things like loose change and powder can get in. I’ve retired the overpriced shock doctor case for these great cases. Still love my SD mouth guards but for travel, cleanliness and portability I trust these retainer cases. ### ⭐⭐⭐⭐⭐ Very sturdy *by M***E on November 14, 2025* Perfect size for traveling with night guard --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/39862083-fresh-knight-retainer-case-2-pack-retainer-case-with-vent](https://www.desertcart.jp/products/39862083-fresh-knight-retainer-case-2-pack-retainer-case-with-vent) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-07-21*