The designation 1” Buckle refers to the width of the Belt that the Buckle can accommodate. Over time 1” Buckle sets have become the most common Buckle size for Sterling Silver Buckles, usually accompanied by a 1” tapered to 1 ¼” Belt, as straight 1” belts appeared too narrow for many, and have mostly vanished from the market. The 1” Buckle size offers the widest selection of Sterling Silver Belt Buckles.