The Togu Anti-Stress Ball is ideal for safely lowering levels of anxiety and tension. Soft and pleasant, the pliable material gives a feeling of perfect distribution of pressure in the whole palm of your hand. Reducing stress is important to overall health as it helps to promote better sleep habits, ward off illnesses and increase the general feeling of well-being. All of which will lead to an improved quality of life. Simply squeezing the ball releases tension which helps to relieve stress. Beyond the stress-relief attributes, the Anti-Stress Ball is a terrific hand exerciser that will help improve grip strength, dexterity, mobility, fine motor skills and gross motor skills. Squeezing the ball works and strengthens the whole finger and hand musculature. Additionally, stress balls have proven valuable to those being treated for carpal-tunnel syndrome and arthritis. Available in three dynamic colors (Black, Blue and Red), the Anti-Stress Balls are made of high-quality Ruton, which is Togu's Latex-free, patented PVC mixture. Each ball also features a plastic needle-valve. This is a case of 12 Anti-Stress Balls, four of each color. Please note, needle and pump are not included. Suitable to be used anywhere - home, office or on the go. Small enough to fit in a pocket. The calming effect of using these balls has proven effective in helping those who want to quit smoking. They're also a terrific addition to meditating and meditation sessions. Stress balls can be used by adults and children. For smaller hands, use a pump needle to release some air and reduce the pressure and size. For adults, pump a little air in to make the ball bigger and firmer. Exercising with these balls will help improve blood circulation as well as dissolve finger, hand and lower arm strains. Easy to clean. Any mild standard cleaning agents and disinfectants can be used to clean the Anti-Stress Balls. Additionally, the balls are waterproof.