Red Heavy Duty Buckle Double Layer Nylon Padded Inside Dog Collar For XXL Good Quality Nylon Material Dog Pet Collars Soft leather inner layer, Gentle liner ,protect your dogs neck 5 holes,adjustable,heavy duty buckle as the picture shows. Size : XXL 4.0cm width, 50~57cm adjustable Please Note: Before you order, be sure your dog is suitable for this size (That's very important).