ProCircle Cobblestone Lacrosse Ball PU Fitness Balls For Yoga Massage Exercise Trigger Therapy Muscle Relief 
Size :20*11cm

Material:PU

Design:pebble

Pebble always used in the Chinese footpath,people will walk on it barefoot.It will massage foot points to aid in the recovery of muscles and assist in returning them to normal function. Normal function means your muscles are elastic, healthy, and ready to perform at a moment’s notice.