Cheerble Smart Interactive Dog Toy, Wicked Ball Rolly, Automatic Moving, Bouncing, Rotating, E-TPU Material, Active Rolling Interactive Dog Ball for Medium and Large Dogs (Blue)Brand: Cheerble Color: Blue Features: Always Fresh & Fun with Replaceable Shell and Rope: Swap out the shell or rope anytime to change colors or replace worn partsno need to buy a whole new toy when accessories wear out. Unlike competitors requiring full replacement, this dog ball toy lets you refresh the dog toy with affordable accessories, reducing long term costs. Keep playtime exciting as your pet enjoys a "new" interactive dog toy every time,