Ergonomic design with a non-slip grip for comfortable and effective hand workouts. Made from stainless steel, this hand grip trainer is wear-resistant and rust-proof for long-lasting use. The high-strength thickened spring ensures durability and provides a challenging workout for strengthening hand strength. The TPR grip shell adds extra comfort during exercise, making it easier to maintain a regular grip training routine. Portable and convenient, this grip strengthener can be used anytime, anywhere, allowing you to improve hand strength on the go. Item Name: Hand Grip Trainer Material: TPR, Stainless Steel Features: Elastic, Non-slip, Exercise Fingers Size Details: A: 12.5cm x 8cm/4.92" x 3.15", Resistance: 30kg (Approx.) B: 16cm x 10cm/6.3" x 3.94", Resistance: 60kg (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Hand Grip Trainer