Vvhome 2 Rows Bling Rhinstone Crystal with Heart Shape Studded Charm PU Leather Pet Collar (Pink, XS) It has 5 adjusting holes, please note below size and compare with it. Size XXS: 2.0*25CM(0.8"*9.8"), adjustable length 17-21CM(6.7"*8.3") Size XS: 2.0*30CM(0.8"*11.8"), adjustable length 21-26CM(8.3"*10.2") Size S: 2.0*37CM(0.8"*14.6"), adjustable length 27-33CM(10.6"*13") Size M: 2.0*42CM(0.8"*16.5"), adjustable length 32-38CM(12.6"*15")