The Hol-ee Roller Medium is a malleable, do-it-all natural rubber ball with hexagon cut outs. One of our top-selling toys. This ball is super durable and super stretchy. It is a fantastic treat ball when stuffed with pig ears, rawhide or your dogs favorite toy. Wonderful training aid and virtually indestructible this versatile toy can be used for fetch, tug, chewing, teething, and more. This size is designed for puppies as well as for small and medium breed dogs.