The distinctive Doco® knot in an O-ring shape is made from high-quality nylon and plastic fittings. The unique design of the fully welded O-ring location allows for easy leash attachment. The design also ensures a release system that captures the buckle and allows you to reattach the knot before it is undone from your dog. Identification ring to attach your animal's ID. Feel safe and confident with this knot. Special features

• Made from high-quality 100% single-layer nylon
• Higher tensile strength than polyester
• Nylon is resistant to mold, aging, and wear
• Easy and quick-release plastic buckle
• Triple-slide system for easy size adjustment
• Strong O-ring for use with leash and ID tag
• Bright colors that are easy to see at all times