Randstark Backup Safety Clip for Added Security - Connect your dog's regular collar to a training collar or a harness for a reliable backup if a prong collar, or harness becomes loose or accidentally opens Heavy Duty Swivel Snap Hooks - Durable electroplated black swivel snap hooks rotate freely to prevent twisting and tangling. The secure double-ended design clips on in seconds for dependable performance Premium Biothane Material - Made in the USA with authentic BioThane webbing and heavy-duty waxed stitching. Waterproof, odor resistant, flexible, easy to clean, and built to handle rain, mud, and snow Fits Most Collars and Harnesses - Compatible with flat, martingale, prong, pinch collars, and most harness systems Made In Usa for Lasting Performance - Built for strength and reliability, this lightweight safety backup clip provides a secure connection without unnecessary bulk for everyday walks and training