DetailsThe combo collar is two collars in one. Attach the nylon thru the floating O ring to the buckle and it is a choke collar. Attach the nylon thru the fixed O ring and it is a regular collar. Double ply, 1 inch wide, tagged for hanging. Specify 16 Ì‹, 18 Ì‹, 20 Ì‹, or 22 Ì‹ length.