Toy material: Soft rubber Suitable age: Children (3-6 years old), teenagers (15-35 years old), 7-14 years old Skill development: Grip, Interactive games, Interest cultivation Waterdrop shape, Relieve stress anytime, anywhere! This waterdrop-shaped stress ball has a smooth, rounded shape, a comfortable grip, and a moderate size that easily fits in the palm of your hand. Made of high-quality environmentally friendly TPR material, it is soft and elastic to the touch, quickly recovers after being squeezed, providing a stress-relieving and relaxing experience. The non-slip textured surface increases grip friction while providing sensory stimulation. Small and portable, squeeze anytime, anywhere to relieve stress and anxiety. Individually packaged, multiple colors available. It is an excellent helper for office workers and students to relieve stress, and also a practical tool for rehabilitation training and hand exercises. Let this little waterdrop take away all your worries and stress!