Provide long-lasting fun for a pup with the JW? ProTen? Hol-ee Roller? Dog Toy. Made to last, the exterior is made up of our patented durable, natural rubber while the interior is made up of a durable tennis ball making this a great chew toy for puppies or small dogs. The high bounce and bright colors of the ProTen Hol-ee Roller make it a great fetch toy and are gentle on a dog's mouth. Ships in assorted colors. Available in two sizes: Mini or Small.