This 2-piece bike trailer hitch set features a professional-grade design, combining rugged stainless steel construction with universal compatibility. Its durable black enamel coating withstands all weather conditions, while precision manufacturing eliminates burrs and sharp edges for safe handling and installation. Designed for quick-release (QR) axles and solid axles up to 12.2 mm (0.5 in) in diameter, this versatile hitch accommodates most traditional bicycles, disc brake models, and full-suspension bikes, offering wide compatibility with a wide range of bike types while providing a secure connection point for towing children, pets, or cargo. Each hitch includes a reliable connecting pin that locks securely into place once installed. A positive locking mechanism prevents accidental disconnection while riding, ensuring your trailer remains securely connected. The thoughtful design prevents the pin from opening or falling out during use, giving you peace of mind when transporting valuable cargo. It works seamlessly with commuter bikes, mountain bikes with disc brakes, and full-suspension models, making it an ideal choice for family leisure, practical errands, or outdoor adventures. The comprehensive double kit contains two complete hitch kits with connecting pins, making it a great value for families with multiple bikes and a handy spare for future needs, while the compact design ensures easy storage when not in use.