• Wide application: Allows you to attach trailers to your bike to transport children safely and comfortably. Compatible with universal bicycles, strollers, dog trailers, and carts. • Robust steel material: Made of high-quality steel, resistant to corrosion and does not rust. Uses precision welding technology and supports heavy loads. Includes safety pin for added protection. • Intelligent structure design: Serrated quick-release that provides high driving stability. Quick and secure attachment. • Increased safety: Easy to transport and use at any time. The stable safety pin adds an extra dose of security for your bike rides. • Easy to use: Equipped with a connection pin for simple and quick assembly. No additional parts needed. Installation in seconds, ideal for bicycles and pet carts.