Product Description Size: 10CM*8CM Color: pink, gray, black Material: Silicone Package content: 1* gripper 1.ENHANCE GRIP STRENGTH AND FINGER FLEXIBILITYThis grip trainer greatly improves the strength and flexibility of your fingers, hands, wrists and forearms, helps you relieve stiffness or prevent arthritis, relieves symptoms such as tendinitis. Effective physiotherapy and strength training, and release your stress, reduce hand fatigue. 2.FIRST-CLASS QUALITY AND EXQUISITE CRAFTSMANSHIP Made of high-quality silicone material, BPA-free, comfortable feel, ergonomic design makes our grip strength trainer closer to your palm, with excellent elasticity, no noise, tear resistance, can be squeezed, stretched. Suitable for office workers, athletes, climbers, musicians and physiotherapistes. 3.EXCELLENT DESIGN AND PORTABILITY The surface with textured grooves that provide excellent grip, not easy to slip when used, and are perfect for adults, the elderly, teenagers and children. The compact design makes our silicone hand grip strengthener very portable, whether at home, office, travel, gym, hotel, and start your workout anytime, anywhere. 4.PERFECT GIFT AND CUSTOMER FIRST This hand exercisers for strength is the most popular portable workout kit of and can be given as a gift to your friends, family, colleagues, and more. 5.Portable design The grip booster is very small and easy to carry and fits perfectly in your gym bag or handbag. You can build in reps on the commute, in the office.