HI-BOOM 2 Rows Rhinestone Bling Flower Studded PU Leather Pet Dog Collar for Small or Medium Dogs(Pink) Made from 100% durable PU leather material 5 adjustment holes for adjustment Size- M: Wide 2.5 * length 42CM/0.98*16.53"), adjustable 32-38CM(12.59-14.96") For the dogs neck