Extensive Compatibility: Engineered to fit most bicycle and trailer , this robust mounting system ensures safe animal transport and superior stability during rides, making it ideal for daily commutes and adventurous outings alike. Reliability and Durability: Crafted from high-quality metal with rust prevention, this coupling withstands extreme pressure and maintains integrity, ensuring safe and secure attachment even on rough terrains. Super Fast Assembly: Featuring a patented quick buckle design, this coupling allows for tool-free attachment and detachment of trailers in seconds, streamlining the transition between different transport needs and equipment loading. Optimal Stability for All Terrains: Equipped with a high-strength metal pin, our coupling delivers consistent traction performance, making it suitable for both urban environments and trails. Multifunctional Use: Transform your bicycle into a versatile transport tool with this coupling that supports pet carts, stroller trailers, and market baskets. Ideal for family outings, urban commutes, and outdoor adventures, its universal design adapts to both city and natural settings. Color:Black Material:Metal Package Contents: 1 * Bicycle Trailer Coupler Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.