Grip Strength Tester, Stainless Steel Wrist Forearm Strength Trainer, 4 Gear Adjustable Resistance, 150kg Load-bearing Capacity, Ideal for Arm Wrestling, Gym Workouts & Muscle Building

Product Specifications: Product Name: Stained Glass Cutting Tools Cutting Diameter: 10-100mm Working Surface Size: 20*15*15CM Packaging Size: 21*16*16CM Weight: 0.86KG Accessories: Cutting Wheel Package Includes: glass cutters for stained glass*1 Tips: Keep the glass surface clean and flat during use to extend the life of the cutting wheel.

• 【Dual-Mode Grip Tester】：Choose Version A (4 springs for basic training) or Version B (4 springs + electronic digital display). enabling data-driven progressive training for athletes, fitness enthusiasts, or rehabilitation users.
• 【Fully Adjustable Resistance & Grip Width】：Customize grip distance (4mm-25mm, 4 levels) to fit all hand sizes. Adjust resistance via 2×39kg + 2×14kg springs—easily add/remove springs with quick-release screws to match beginners, intermediate, or advanced training phases.
• 【304 Stainless Steel Construction】：Built with food-grade 304 stainless steel: waterproof, rustproof, oxidation-resistant, and corrosion-resistant. Withstands high-intensity use and harsh environments, ensuring long-lasting performance for years of training.
• 【Ergonomic Anti-Slip & Smooth Operation】：Knurled-texture handles provide a comfortable, non-slip grip even during sweaty workouts. Ball-bearing guides enable friction-free, jamming-free motion, ensuring consistent resistance and precise strength measurement.
• 【Portable Heavy-Duty Performance】 ：Light weight for on-the-go use—fits in gym bags or travel kits. Supports a maximum load of ≤150kg, making it ideal for grip strength testing, arm/hand muscle activation, and training for sports (climbing, tennis, arm wrestling) or rehabilitation.