This roller buckle is perfect for a belt buckle, harness buckle, mens belt buckle, womens belt buckle, dog collar buckle or strap buckle. The buckle roller allows for easy tightening of the leather strap. The 1 1/2 inch size is the inside diameter so you know how much space you have for your leather.
Not exactly a harness buckle, but close and for a great price! Shipping was fast. Would definitely order again if needed.