Showman Couture  Genuine leather dog collar with clear rhinestone crystals.  This 1" leather dog collar features a medium leather with clear rhinestone crystal design and silver hardware.
 
Small size is 14 1/2'' in  length   first hole to the buckle is 9'' to 12 3/4
Medium  size is 19 1/2'' in length first hole to buckle is 13 1/2''  to 17 3/4'' 
Large size is 25 1/2 in length. from first hole to buckle is 17 3/4'' to 23 1/4''