Sizing:
Baby - 5” long (uses 1 ball)
Child Medium - 7” long (Childrens 9 - 12)
Child Large - 8.25” long (Childrens 1 - 4)
Adult Small - 9.5” long (Womens 5 - 7 / Mens 4 - 6)
Adult Medium - 10.25” long (Womens 8 - 10 / Mens 7 - 9)