The Uhaul 13144 Anti-Rattle Receiver Pin Lock is a rear placement accessory designed to prevent rattling noises when towing trailers. Manufactured by Uhaul, this receiver pin lock ensures a secure connection between your vehicle and trailer, providing a quiet and smooth towing experience. The anti-rattle feature of this product enhances the overall functionality and durability of your trailer hitch system, making it a reliable and essential component for your towing needs.