Rogz car-safe seat belt clip, utility is designed to function with our classic harness to restrain your dog in one position in the vehicle and help prevent driver distraction. High strength components, box-stitched joins and high-quality webbing ensure extra strength, durability and safety for everyday use. Size: - extra extra large, width: 40mm, length: 20cm care instructions - hand wash, mild detergent, air dry warning - designed to work with Rogz classic harness only. Do not use with a step-in harness, fast-fit harnesses or stop-pull harness. Do not use with any collar. In the event of a car accident, it may not prevent injury to passengers or your dog.