These collars are made from Weaver Select English Bridle Leather. They have a tapered design. The body of the collar is 2" wide and it is tapered down to a 1" buckle. This is a wide collar The buckle is Stainless Steel with a matching D-ring for you leash. You may choose to add a name tooled into the leather, just message us with the name you would like. For sizing, measure you dogs neck in inches or measure their existing collar from the buckle to the hole you are using.