Coastal Pet Macho Dog Double-Ply Collar with Roller Buckle is the perfect collar for your big loving dog. Sometimes, bigger is better! The Macho Dog Double-Ply Nylon Collar with Roller Buckle offers heavy-duty strength for extra-large dogs. With two layers of 1 3/4"-wide durable nylon sewn together, this hound-style collar provides extra strength by reducing stress on its buckle. All of this strength makes our Macho Dog collars perfect to use with tie outs.