Sunny Health & Fitness Hand Grip Soft-Pairs ERGONOMIC: On the go fitness has never been easier with the durable hand grips. Improve dexterity in your hands and build muscles in your forearms with the hand grips built to last. LIGHTWEIGHT AND COMPACT: Bring your hand exercisers to the gym, to the office or while you are watching TV so you can get a workout in where you go. Store in a gym back and wipe sweat and debris off for easy cleaning. VERSATILE FUNCTIONS: This increased power can help gym enthusiasts lift more weights and feel less hand fatigue. Those who participate in activities like gymnastics, tennis, rock climbing and musical playing can benefit from hand grip workouts. IMPROVED GRIPS: The comfy grip exercisers ensure optimal grip and comfort for any moderate to intense workout. Squeeze for 15 minutes a day to improve hand strength. RESISTANCE TRAINING: The heavy-duty coils remain coiled and provide resistance training to help build firmer muscles in your hands and forearms. Hand grips work to build finger, hand and forearm strength.