3 pieces hand trainer ball: This finger trainer set includes 3 different resistance levels. The yellow ball provides soft resistance, the red ball offers medium resistance, and the blue ball delivers firm resistance. Ideal for improving finger mobility and supporting rehabilitation of the fingers and forearms, this hand exerciser set is designed for regular hand and grip training. Washable hand training ball: These hand trainer balls can be easily cleaned with water after use. Their oval, egg-like shape fits comfortably in your hand. The textured surface enhances grip and helps prevent slipping during exercise. Durable and robust construction: Made from high-quality thermoplastic rubber, these anti-stress balls maintain their shape even with repeated use. The material is durable and resilient, allowing for reliable performance during daily workouts. Supports grip strength and dexterity: Designed to assist in building hand strength and finger flexibility, these exercise balls are suitable for a variety of users. They are ideal for individuals involved in activities such as climbing, bodybuilding, fitness, tennis, baseball, boxing, and golf. Egg-shaped grip balls with 3 resistance levels: Each ball is washable and can be cleaned with water. The hand exercisers are portable and can be used anytime, anywhere. This set is designed to support overall grip strength and finger flexibility training. Made from 100% high-quality thermoplastic rubber, the stress balls are hypoallergenic and non-toxic. Package includes: 1 yellow ball, 1 red ball, 1 blue ball.