Charming Pet Cube-Eez Buffalo Plush Dog Toy is a soft, plush two-in-one toy that is great for playing fetch with your best friend both indoor and outdoor. The buffalo cube feature K9 Tuff Guard Technology. It uses a denier canvas, nylon-fused backing and double-stitched seams to handle the gentle and moderately tough pulls and bites. Even if your dog decides to destroy the plush outer shell, inside of the toy is another toy, a spiky cube with a built-in squeaker inside.