The resistance levels of these stress balls include: slightly soft,moderately har,and firm hard, so you can choose the right one for your needs.
It is ergonomic, flexible and easy to carry. It can be placed in a handbag or pocket.
Made from silicone, with unique non-slip texture surface. Portable, easy to clean with sealable protective pack for easy storage.
Strengthen and improve flexibility in the hands, fingers, wrists and forearms. Ease joint pain. Help with stiffness of the the fingers.Relieve stress and reduces muscular tension.

Colour: blue+green+orange
Material: silicone
Size: diameter about 5cm

Package Contents:
3 * Grip ball