The Petstage Orka Dental Puck is tough in performance but easy on a dogs mouth. It is durable & stands up to chewing. The shape of this toy with its raised textures adds interest & massages the gums when chewed while the rope helps to remove tartar build up. Orka material is durable, yet easy on dogs mouth Solid construction for power chewers Textured surface massages gums & adds interest Unique " Puck" helps to reduce jaw atrophy Cotton rope braid helps remove soft tartar