These collars come with a BLACK Plastic Buckle! These collars can be made in 3/4”, 1” and 1.5” width and have Nylon or Polypropylene Webbing inside of the fabric to ensure that they stay durable and strong. All K and M Collar items are handmade-to-order specifically for your pet. Flat Side Release Buckle Collars 3/4, 1" and 1.5" Sizes: XS - 8-13 inches S - 11-15 inches // 1.5" S - 10-14 inches M - 14-18 inches // 1.5" M - 14-20 inches L - 16-22 inches // 1.5" L - 16-25 inches XL - 22-26 inches // 1.5" XL - 17.5-27 inches