Peace IsoFlex Ball Therapeutic Hand Stress Relievers (Red) Unique soothing irresistible feel because it is filled with Micro Beads. Only Isoflex Stress Ball is double lined for extra durability. Isoflex Stress Ball provides high quality double protection against leakage and breakage. A great way to help relieve stress and tension. Also a great way to assist in rehabilitating forearms and wrists from injury. Keep Isoflex Stress Ball at the workplace, in your car, or in your purse to use anytime you need to relieve some stress or just fidget with your hands! Colors- blue, red, green, yellow or purple Auction is for one.