D-End Leather Dog Collar – Designed for Pulling DogsMade specifically for your dog each collar is crafted in house to your dogs exact measurements, giving a true custom fit rather than a best guess from standard size ranges. Designed for medium to large dogs that pull this reinforced D end design features an additional layer of leather through the buckle section for added strength and durability under tension. For this reason, this style is only available in 3 4", 1", 1. 25" and 1. 5" widths. Optional