Bling Rhinestone Dog Pet Cat Puppy Pu Leather Collar Crystal Diamonds size S M Made with high quality, PU Leather and Rhinestones. Buckle design,adjustable & easy to wear. SMALL SIZE :wide 0.5 inch * length 13 inch , 8-11 inch for the dogs neck (3 Rows Rhinestone) MEDIUM SIZE :wide 0.75 inch * length 16inch ,11-14 inchfor the dogs neck (4 Rows Rhinestone)