Our US-made dog leashes are built to be used for years to come. STRONGER DURABLE WEBBING: We use a top quality polyester webbing made in the USA just for us rather than the nylon used by most of our competitors because polyester does not stretch like nylon when wet, and is 5x less likely to cause an abrasion than nylon. HIGHEST QUALITY CLASP: We use extra heavy duty quick clasp so it is easy for you to attach the leash to your dog's collar even when the dog is moving around.Buttonsmith Inc. is a small American manufacturer based in Redmond, Washington. Originally founded as a school project by then-10-year-old Henry, we are now a unionized workplace employing more than a dozen people where we make beautiful environmentally-friendly products designed to bring a little joy to our customers' lives every day. If you are ever in Redmond, stop in and say hi!