4 Big Baseball Hand Wrist Finger Exercise Stress Relief Therapy Squeeze Balls Set Of 4 Assorted Baseball Squeeze Balls Size: 3" inches Color: White, Blue, Pink, Orange For Hand Finger Wrist Exercise. Excellent for Stress Relief Great Finger Therapy Safe to play with - they passed US custom CES exam. Helps to relief your stiffness and relax your entire hand just like a finger THERAPY Reliefs your muscle and joint all together.