--- product_id: 53792202 title: "Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz)" brand: "mrlifehack" price: "¥360" currency: JPY in_stock: false reviews_count: 8 url: https://www.desertcart.jp/products/53792202-stainless-steel-cups-4-pack-by-mrlifehack-healthiest-and-safest store_origin: JP region: Japan --- # Eco-friendly materials Rust-free quality Unbreakable durability Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) **Brand:** mrlifehack **Price:** ¥360 **Availability:** ❌ Out of Stock ## Summary > Sip sustainably! 🌍 ## Quick Answers - **What is this?** Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) by mrlifehack - **How much does it cost?** ¥360 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/53792202-stainless-steel-cups-4-pack-by-mrlifehack-healthiest-and-safest) ## Best For - mrlifehack enthusiasts ## Why This Product - Trusted mrlifehack brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Premium Quality:** Crafted from 304 18/8 food-grade stainless steel. - • **Versatile Sizes:** Available in 8oz, 12oz, and 16oz for every occasion. - • **Easy Maintenance:** Dishwasher safe and stackable for effortless storage. - • **Unbreakable Design:** Say goodbye to shattered glass! - • **Eco-Conscious Choice:** Lead-free, BPA-free, and phthalate-free. ## Overview The MrLifeHack Stainless Steel Cups are a premium 4-pack of unbreakable drinkware designed for durability and safety. Made from high-quality 304 18/8 food-grade stainless steel, these cups are lead-free, BPA-free, and phthalate-free, making them the healthiest choice for your family. They come in three versatile sizes and are perfect for kids, outdoor activities, and any event. Plus, they are dishwasher safe and stackable for easy storage. ## Description Full description not available ## Features - Make sure this fits by entering your model number. - 💪 NEVER BREAK A CUP AGAIN: Are you looking for durable cups that are great for outdoors, kids and clumsy relatives? Well look no further then The Stainless Steel Cups by MrLifeHack. This premium 4 pack set of drink-ware is 100% unbreakable and designed to last a lifetime. Never worry about broken cups or shattered glass again! - 🌎BETTER FOR YOU AND THE ENVIRONMENT: 100% Lead free, BPA free and Phthalate-free. Our cups are the healthiest and safest way for your family to consume beverages. Never expose your family to toxins found in other cups again. These glasses are also reusable which helps eliminate waste & preserve the environment! - 💎RUST-FREE WITH NO METALLIC AFTER TASTE: The problem with many competitor cups is that they are made of cheap materials. This can result in a metallic aftertaste and early rusting. That’s why we made your cups from the highest quality premium 304 18/8 food grade stainless steel. 100% RUST-FREE and NO metal aftertaste guaranteed. - ✅FUNCTIONAL & VERSATILE: Whether you want a safe cup for your toddler or want to unwind with a cool drink these cups are perfect for you. Available in 3 different size 8oz, 12oz and 16oz to accommodate all your needs. Great for kids, outdoors ,camping ,parties, beach, wine, pints, beer ,snacks, BBQ’s, picnics and any other event you might have in your life! - 💧EASY TO CLEAN & STORE: Clean up is a breeze as these cups are dishwasher safe. No room? No problem these babies are 100% stackable so you can SAVE SPACE. Need to travel? Enjoy the lightweight portability of your cups. These also pair well with our Silicone Sippy Cups lids. Enjoy the LIFETIME GUARANTEE! We stand behind our products with a 100% satisfaction or your money back. Put these in your home today and experience the undeniable quality! ## Images ![Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) - Image 1](https://m.media-amazon.com/images/I/81+u9iVwm9L.jpg) ![Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) - Image 2](https://m.media-amazon.com/images/I/61XQ2LEn+ML.jpg) ![Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) - Image 3](https://m.media-amazon.com/images/I/71vht7EvGcL.jpg) ![Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) - Image 4](https://m.media-amazon.com/images/I/717tGBK4xyL.jpg) ![Stainless Steel Cups (4 pack) by MrLifeHack - Healthiest & Safest Drinking Glasses - Great for Kids, Toddlers, Sippy & Outdoors -Premium Unbreakable Metal Tumblers - Available in 3 Sizes (8 oz) - Image 5](https://m.media-amazon.com/images/I/81w5sUdbfSL.jpg) ## Available Options This product comes in different **Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ So far so good *by D***N on Reviewed in the United States 🇺🇸 on January 7, 2019* Got these to replace plastic ones (not liking the plastic, even though they're the cute Ikea colorful ones). Went with 8 oz size. Got silicone 'sippy' lid covers to help with spills (older but distracted and clumsy child), and couldn't be happier. Have only used them with cold drinks so far, as he has his hot choc in an insulated tumbler of mine. So far, he's happy with them and likes the bigger boy feel and size of them, is amused by the condensation (yes, they will sweat with ice in them), and hasn't spilled anything with the covers. They pop in the dishwasher and are easy enough to hand wash as well. Will update if anything goes amiss, but they seem good, sturdy, and functional, and I love that I can add the (separate purchase) silicone covers to top and no spills, and we can get rid of those but keep the cups when they're no longer needed. ### ⭐⭐⭐⭐ Nice cups... *by M***T on Reviewed in the United States 🇺🇸 on April 22, 2018* These are nice cups and what you see in the advertisement is what you are getting vary the size. They are stackable and are not hard to get out when stacked. I would be careful if you place something hot or really cold (a lot of ice) inside of it and them attempt to drink lol. You may want to purchase a sleeve for it.My grandmother would give us these cups to drink out of when I was a child. ### ⭐⭐⭐⭐⭐ At first use great - pinch openings as directed *by C***G on Reviewed in the United States 🇺🇸 on January 26, 2019* I was happy to find these and really love everything about them so far. We've only just started using them today, but so far so great. You do need to take the step they tell you to in the package insert which is to pinch the openings so they work properly, but that is no big deal. They look great and I have a feeling they will last. --- ## 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/53792202-stainless-steel-cups-4-pack-by-mrlifehack-healthiest-and-safest](https://www.desertcart.jp/products/53792202-stainless-steel-cups-4-pack-by-mrlifehack-healthiest-and-safest) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-04*