Simulating the texture of meat on a bone, The Groove Thing ^TM is the ultimate chewing experience.

The Groove Thing ^TM uses new patented technology to bond all natural rubber to a tough solid core. Dogs go crazy for dual texture. Spreadable treats can be smeared in the grooves. The inner core can be stuffed like a sterilized bone. Dishwasher safe. Available in two sizes.

Premier has discontinued this item but I have one left in stock in size small/medium. 

Small/Medium recommended for Pugs, Westies, Jack Russels, etc.

Medium/Large recommended for Spaniels, Shelties, Labs, Rottie, etc.