The Jolly Pets Flex N' Chew Bobble Treat Inserting Tough-Chewer Rubber Dog Toy is a mighty chew toy uniquely shaped to create an erratic, unpredictable bounce that drives dogs crazy with excitement. Made from Jolly Pets’ ultra-tough, flexible rubber, the Bobble features ridged ends that massage gums and a hollow center perfect for inserting a stick treat for added engagement. Despite being only 2-3 Inches it’s designed for serious chewers – providing hours of chewing, fetching, and treat-hunting fun while helping keep teeth clean and gums stimulated. Available in Multiple Sizes or Colors