C-Bon- collar1 1 2 inch wide BioThane collar with 0me large ring front center and a sturdy nickel plated roller buckle closure it is available in 4 sizes small 12 to 14 inch neck size medium 12 3 4 to14 3 4 inch neck size large 13 3 4 to16 inch neck size x large 15 to 17 inch neck size why is it called the c bon collar I realy dont know it is one of the oldest designs that I still make . years ago I was working a noir leather. In detroit and found a old box of