Dog Collar – Studded Rivet PU Leather – 2″ wide – 13 Colors 4 Sizes Great for medium and large sized dogsMade of thick durable PU Faux Leather Measures 2″ wideAdjustable Sizing:Please add 1-1.5″ for a more comfortable fit Small: 15-18″Medium: 17-20″Large: 19-22″X-Large: 21-24″ Length of collar including buckleSmall 21″Medium 23″Large 25″X-Large 26 3/4″