JW HOL-ee Roller Original Treat Dispensing Dog Ball - Hard Natural Rubber - Assorted Colors TREAT-DISPENSING FUN: Patented, open design and stretchy rubber material fits treats of all shapes and sizes for playtime as unique as your dog PATENTED DESIGN: Durable treat ball made from natural, non-toxic rubber, seamless throughout for added strength MENTAL EXERCISE: Dogs develop problem-solving skills as they work to remove treats or toys from the Hol-ee Roller BREATHABLE RUBBER PET TOY: Soft rubber design features hexagon cut-outs, allowing pets to breathe through the toy for safe, extended play PERFECTLY SIZED FOR YOUR PET: Available in different sizes for small, medium, and large dogs to accommodate a variety of chewing styles; soft rubber is ideal for teething puppies FETCH, TOSS, AND TUG: Dog treat ball is versatile for all kinds of interactive play, enhancing playtime for pets and pet parents