1 1/2 inch belt. 2 snaps to release and change the buckle.  Belts should be made one size larger than pant size, for example someone who wears 34 pants would get a 36 belt.  Size is based on center hole.  There are 3 holes larger and smaller on either side of center hole. Comes with standard utility buckle. Sizes range from 26-42, please inquire on availability of other sizes.