--- product_id: 100312502 title: "Patented Hand Exerciser - Original, Made In USA Hand Grip Strengthener, for Physical Therapy, Musicians and Athletes" brand: "flexex" price: "¥4167" currency: JPY in_stock: true url: https://www.desertcart.jp/products/100312502-patented-hand-exerciser-original-made-in-usa-hand-grip-strengthener store_origin: JP region: Japan --- # Strengthens grip Made in USA Ergonomic design Patented Hand Exerciser - Original, Made In USA Hand Grip Strengthener, for Physical Therapy, Musicians and Athletes **Brand:** flexex **Price:** ¥4167 **Availability:** ✅ In Stock ## Summary > 💥 Grip it, Own it, Flex it! ## Quick Answers - **What is this?** Patented Hand Exerciser - Original, Made In USA Hand Grip Strengthener, for Physical Therapy, Musicians and Athletes by flexex - **How much does it cost?** ¥4167 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/100312502-patented-hand-exerciser-original-made-in-usa-hand-grip-strengthener) ## Best For - flexex enthusiasts ## Why This Product - Trusted flexex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile for All:** Perfect for athletes, musicians, and anyone in need of hand therapy. - • **Compact & Portable:** Lightweight design allows for use anywhere, anytime. - • **Quality You Can Trust:** Crafted from premium, latex-free materials for durability. - • **Unleash Your Grip Power:** Transform your hand strength with our patented design! - • **Maximize Your Performance:** Elevate your game and prevent injuries with FlexEx! ## Overview The Patented Hand Exerciser by FlexEx is a USA-made hand grip strengthener designed for effective rehabilitation and performance enhancement. Ideal for physical therapy, musicians, and athletes, this ergonomic device strengthens fingers, hands, and forearms while preventing injuries. Its innovative design ensures a secure fit, making it a versatile tool for anyone looking to improve their grip strength. ## Description Patented Hand Exerciser - Original, Made in USA Hand Grip Strengthener, for Physical Therapy, Musicians and Athletes ## Features - EFFECTIVE -This USA designed and patented device effectively exercises and strengthens the fingers, hands and forearms and can even rehabilitate injured wrists (Carpal Tunnel, etc.). Great for use in ahnd phsysical therapy programs or others just wishing to exercise and rehabilitate their hadns and fingers on their own or maintain hand, finger and grip strenght. Innovative design keeps product from sliding down your finger, unlike other products on the market. - VERSATILE - Perfect for anyone, this device exercises all fingers at one time, or individual fingers, e.g. for flexion adduction, abduction and blocking exercises - QUALITY - Made with highest quality Latex free Material. Proudly designed, made, packaged and distributed here in the U.S.A. by a California, USA Company. - ERGONOMIC - sleek, non-cumbersome, with no bulky contraption. So lightweight, use it any place/any time to help strenghten fingers, hands and arms and help prevent/heal injury from repetitive keyboard usage. - MAXIMIZE PERFORMANCE - Maximize performance and improve your sport the simple effective way with FlexEx! ## Technical Specifications | Specification | Value | |---------------|-------| | Item Package Dimensions L x W x H | 6.34 x 3.94 x 0.55 inches | | Package Weight | 0.02 Kilograms | | Item Dimensions LxWxH | 6.5 x 4 x 1 inches | | Brand Name | FlexEx | | Material | Rubber | | Manufacturer | WONODA Inc. | | Part Number | FLX-ORIG | | Style | Hand Grip Strengthener | | Size | 3 Count (Pack of 1) | ## Images ![Patented Hand Exerciser - Original, Made In USA Hand Grip Strengthener, for Physical Therapy, Musicians and Athletes - Image 1](https://m.media-amazon.com/images/I/7123KJOyWtL.jpg) ## Questions & Answers **Q: Any idea what the pound resistance is on each of these?** A: Afraid not. When comes to physical comparsion. Except maybe about 20% & below; of those hand grippers at 20lbs setting. But you can double up. -- Use them off & on. Mainly to focus on areas when needed. Or if I find myself getting repetitive postions. This way forcing myself to do something different. Maybe little weird for some. And best to go in as for fun & technic outlook when using. And of course, the hand, finger length or how thin/thick fingers are. Changes everything. -- Anyway hope this helped 'some'. **Q: does this contain silicone?** A: Hello D.L, No, the FlexEx does not contain silicone, and is latex-free. All the best, Nadia FlexEx Team **Q: Whats the difference between this and the Sport pack?** A: Hello A. Flores, The Original packet contains 1x Yellow (very soft), 1x Red (medium) and 1x Blue (hard) FlexEx. This is an all-around pack from soft to hard. The Sport pack does not have the soft Yellow, but instead has 1x Green FlexEx which is medium hard (falls between the Red and the Blue). This pack is specifically for people with healthy hands who want to strengthen their hands even further. I hope this helped a bit in making your decision. Please feel free to contact us directly at 888-353 -9399 if we can help you with any additional questions. With best regards, Your WONODA/FlexEx Team --- ## 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/100312502-patented-hand-exerciser-original-made-in-usa-hand-grip-strengthener](https://www.desertcart.jp/products/100312502-patented-hand-exerciser-original-made-in-usa-hand-grip-strengthener) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-12*