Adjustable Pet Dog Cat Velvet PU Leathe Big DMC Hotfix Rhinestone Callar Material:PU Leather,DMC Hotfix Rhinestone S Size:Fit for 8.7"-10.2"(Total Length:12.2",Width:0.5") M Size:Fit for 10.2"-12.2"(Total Length:14.2",Width:0.5") strong and durable 100% satisfaction