1.Composed of TPR Material that's Durable like rubber with strong Resistance to Bite2.Features a centered socket with ridges for placement of Dog Treats that release when chewed on3.Features a unique 4-sided bone design4.Safe, Soft, Durable, and composed of Non-Toxic Materials5.Available in Multiple ColorsThe Pet Life 'Quadra-Bone' TPR Treat Dispensing Durable Dog Toy is composed of a Soft, Lightweight and Highly Durable TPR Rubber-like material with strong resistance to bite. This Dog Toy features a centered socket with inner ridges for placement of Dog Treats or Food that are slowly released during play that's great for building rewarding cognitive skills. Features a unique 4-sided bone-shaped molded design for added fun.SIZING DIMENSIONS: (INCHES) L x W x H5.2 X 5.2 X 1.97