ITEM NAME:4 x Stressball Anti-Stress Ball Crunch Ball Relax Ball Handtrainer Finger T B7B9 4 x Stressball Anti-Stress Ball Crunch Ball Relax Ball Handtrainer Finger T B7B9 Push ball, make your hands relaxed. It made of rubber PU. It entitles the holder to perform all the cells effectively. It also helps the blood flow in the hands. Exercises to strengthen the knuckles without injury. Quantity:4 Make it tense to relieve tension. Give on hand and fingers that often occur when you wake up. The balls are also useful in relieving stress. If you feel angry but do not know how to bleed. Flexible soft awesome stress relieving squeeze venting balls. Size: ca. 2.5" (6 cm) diameter Characteristics: The balls are also useful in relieving stress. Material: PU rubber Color: random Package Content: 4 x relaxing ball Note: Random color, don't accept the specified color. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Make it tense to relieve tension. Give on hand and fingers that often occur when you wake up. Exercises to strengthen the knuckles without injury. The balls are also useful in relieving stress. Push ball, make your hands relaxed.