1.5" in diameter (per ball)
Every pair of stress balls comes with a handmade box. Every ball is hollow with a sounding plate that produce low and high frequency tones when moved around. These chinese stress balls, also known as Baoding Balls, are used to massage pressure points and to exercise the muscle on the hands. They can also be used to assist in injury recovery, improve joints, and help blood circulation.
Random Colored Boading Balls will be sent in Box. (Red, Green, Blue Chrome Balls)