Long-lasting, safe, and durable these stress balls are made of a thick thermoplastic rubber outer layer and are non-toxic. They are can withstand thousands of squeezes. If dust sticks to the ball, rinse it with water and it's instantly as clean as new.
Relieve hand and wrist soreness is also a great hand exercise squeeze ball for those who use a computer or do more hands-on work, squeezing them helps stimulate muscles and tendons which can relieve pain caused by carpal tunnel syndrome.
