JW Pet ProTEN™ Hol-ee Roller Dog Toy is an ingenious, patented honeycomb, web design plus natural, tough rubber gives the Hol-ee toys the ability to offer multiple kinds of fun. With an added durable tennis center, the ProTEN™ Hol-ee Roller Dog Toy provides hours of bouncy playtime. JW Proten Hol-ee Roller makes it easy to hide a treat and turn it into a game of fetch! Interact with your best friend today! Intelligent ideas that keep the pets you love happy. Durable natural rubber Non-toxic Great for interactive or solo play