Stimulate your pet with the interactive Busy Buddy Bouncy Bone toys. The design of the durable nylon bone & rubber ball provide dogs with an extended chewing experience - the rawhide treat rings last longer than giving treats alone & dogs are stimulated to chew the toy well after the irresistible rawhide treats are gone. Busy Buddy Bouncy Bone unscrews to load treats and clean. Comes packed with 6 Size B rawhide treat refills. Additional rawhide treat rings sold separately. Medium 6"L size is great for medium dogs 10-50 lbs. such as Beagles, Cocker Spaniels, Shelties, etc.