Constructed of industrial strength nylon webbing, the Keystone™ line features solid stainless steel hardware, reinforced X- stitching and a comfort conscious design that keeps webbing edges turned out to prevent irritation. Our Keystone Casual Collars are a great introductory collar for growing puppies who need adjustability or a durable, attractive every-day collar for any dog. Rescue and Adoption groups also love these collars and leashes as an affordable option for new adopters!