2 Pieces Bike Trailer Coupler Set for Connecting Trailers to Bicycles Features: - Practical Design: Allows you to securely connect a child or pet trailer to your bicycle. Compact and lightweight for easy transport and use. - Durable Construction: Made from high-quality steel with a black enamel coating for enhanced resistance to rust, corrosion, and deformation. - Secure Connection: Provides a stable and reliable attachment that stays firmly in place during use, ensuring safe rides. - Easy to Install: Simply attach the coupler to your bike frame, then connect the trailer using the included pin—no tools required. - Wide Compatibility: Works with mountain bikes, folding bikes, and standard bicycles. Compatible with QR axles and solid axles up to 12.2mm. Suitable for use with child trailers, pet trailers, and other bike trailers. Specifications: - Material: Steel - Maximum Load Capacity: 40kg - Quantity: 2 pieces - Weight: 252g - Dimensions: 7 x 3 x 3.5cm Package Includes: 2 x Bike Trailer Couplers