Ready to join the Dura Club? PetShop by Fringe Studio's "Sweet on the Inside" rubber dog toy in blue is for pups that love to work for their treats, chew, and play lots of fetch. As a 2-in-1 treat dispenser puzzle with an erratic bounce and made with natural rubber, this toy was created for long-lasting interactive play. Simply fill the inner treat dispenser puzzle or outer treat dispenser with treats, then toss it for some fetchin' fun to keep your pup busy trying to get them out. Great for all-sized dogs and strong chewers. 4.5" x 4.5"