1.4 SIZE OPTIONSThere are four adjustable sizes to choose from, and choose three different widths (0.6", 0.8" and 1" wide) for your dog. The collar will not stretch on its own, please make sure to leave only 2 fingers between the collar and the dog's neck. A proper collar and harness won't leave any room for your dog to chew. 2.Quick Release Metal Buckle: Release the collar immediately to protect your pet. The clasp is made of zinc alloy. D-rings are welded for high strength and durability. 3.Place to put your dog tagWe provide you with a small built-in loop next to the buckle. 4.Handmade Dog CollarsHandmade leather dog collars and puppy collars are a combination of fashion, high quality and comfort. These leather collars for adult dogs and puppies are comfortable, flexible, light and elegant. Quality hardware is used to make these genuine leather collars for dogs. Multiple sizes allow to choose the most suitable collar for small, medium and large dogs.