Made with quality heavy nylon, woven ribbon, a strong buckle, and a welded D-ring. It is intended for medium to large dogs. This is handmade, sewn in Maryland. Caninedesign is a woman-owned small business, supporting people with a living wage. We take pride in our craftmanship and quality, and we're confident you will be happy with our products. Collars are machine washable. Lay flat to dry.