Guardian Gear® reflective nylon o-ring collars are constructed with durable high-quality nylon with reflective stitching and high-tensile force plastic fittings. The secure placement of the fully welded O-Ring allows for easy attachment of a leash and is more secure. Made of durable nylon, with full-length reflective tape that lights up brightly in headlights or flashlights. Collars are padded for comfort and adjustable with contoured plastic buckles.