Hi Bounce Pinky Ball 2 1/2" - Sports Exercise Equipment - Set of Six (6) Set of 6 Pinky Hi-Bounce sponge Balls - Each ball measures 2.5" in diameter Ideal for massaging the feet, hands, back or hip. Try all 6 on the floor, lay down on them face up and roll to hit trigger points on your back. An quick search on the web will give you plenty of options. Ages 3 years and up Please Note: Ball design may vary & they contain latex.