The PU sponge hand grip ball is designed for beginners to enhance their grip strength. Made from soft, high-rebound material, it provides a comfortable and effective way to improve and hand muscles. Ideal for use at home, in the office, or on the go, this hand exerciser helps increase hand flexibility. Features -Color:Sky-blue -Material:PU sponge -Size:7.00X7.00X7.00cm/2.75X2.75X2.75in -Comfortable material: made from pu sponge, this hand exerciser offers a soft and comfortable grip, making it ideal for beginners to start strength training - design: the rebound feature enhances hand muscle strength and improves handeye coordination, suit for office workers to relieve hand stress during breaks -Portable and convenient: compact and lightweight, this wrist training tool is easy to carry, allowing you to exercise your grip anytime, whether at home, work, or while traveling -Fun and engaging: designed to add enjoyment to your workouts, this squeeze ball motivates users to maintain consistent training and achieve their fitness goals -Rehabilitation support: helps improve flexibility and grip strength, making it a great accessory for hand recovery exercises and rehabilitation purposes Package list: 4 x hand exercise balls