Dogs go crazy for the Dogzilla® knobby bone in its classic bone shape. Tough rubber "teeth" grab dog treats, which helps make dog's treats last longer. Knobby texture stimulates gums and promote dental health. Though we consider our dog toys to be some of the toughest in the world, we still recommend that you supervise your dog during play time and remove the toy from your dog if it becomes damaged or parts become separated. No dog toy is indestructible and every dog interacts with their toys differently. Supervised play will go a long way to helping your dogs toys last longer.