JW HOL-ee Roller Original Treat Dispensing Dog Ball - Hard Natural Rubber - Assorted Colors TREAT-DISPENSING FUN: With a patented, open design and stretchy rubber material to fit treats of all shapes and sizes, JW dog toys help make playtime as unique as your dog PATENTED DESIGN: Durable JW dog ball is made from natural, non-toxic rubber, seamless throughout for added MENTAL EXERCISE: Dogs develop problem-solving skills as they work to remove treats or toys from the JW Pet Hol-ee Roller BREATHABLE RUBBER PET TOY: Soft rubber design features hexagon cut-outs, allowing pets to breathe through the dog ball holes for safe, extended play PERFECTLY SIZED FOR YOUR PET: Rubber JW ball measures 4-1/2 inches to provide entertainment for medium dogs FETCH, TOSS, AND TUG: JW's rubber ball for dogs is versatile for all kinds of interactive play, enhancing playtime for both pets and pet parents