Good Performance: The bicycle trailer hitch connects child or pet trailers to a bicycle securely, making it easier to travel with children or pets. Durable Material: Made of heavy-duty steel, this bicycle trailer coupler features high-quality construction with solid structure and fine workmanship for long-lasting durability and reliable performance. Convenient Design: Designed for safety and practicality, the trailer adapter includes a fixing hook that ensures a secure connection, minimizing the risk of detachment and enhancing safety for children or pets. Easy Installation: Simply remove the nut from the bicycle’s rear wheel bolt, attach the steel hitch to the bike, and connect the trailer connector to the attachment hook. Wide Compatibility: With a maximum load capacity of 40 kg, this coupler fits QR axles and solid axles up to 12.2 mm (0.5 inch) and is compatible with most bicycles and trailers, including folding bikes, mountain bikes, road bikes, child trailers, and pet trailers.