Fleur de Lis Dog Collars, Leashes, & Harnesses. These Fleur de Lis dog collars, leashes, and harnessesare made with durable nylon webbing. Our Fleur De Lis collars, leashes, and harnesses feature Delrin Acetal side release buckles for ease of fastening and separating and solid nickel plated “D” rings for strength. The collars are easily adjusted for length and are available in many sizes. Our leashes use nickel-plated swivel snaps.