Dog Kingdom Pu Leather One Row Studded Spiked Adjustable Dog Collar Eco-Friendly and high quality PU leather dog collars X-Small:total length:0.6*12 INCH;1.5*30CM;Suitable for neck size:8-10 INCH,20-26CM Small:total length:0.6*14.5INCH;1.5*37CM;Suitable for neck size:10-13 INCH,27-33CM Medium:total length:0.8*16.5 INCH;2*42CM;Suitable for neck size:12-15 INCH,29-38CM Large:total length:1*20 INCH;2.5*51cm;Suitable for neck size:14-18 INCH,36-46CM