2 Pieces Bike Trailer Coupler Set – Universal Coupling for Bicycle Trailers Features: Practical: This bike trailer coupler allows you to securely connect a stroller or pet trailer to your bicycle. Compact and lightweight design makes it easy to carry and use. Sturdy: Constructed from high-quality steel with a black enamel coating for enhanced durability, resistance to rust, corrosion, and deformation. Safety: Designed to securely attach to your bike and prevent accidental disconnection, ensuring safe and stable towing. Easy Installation: Simply attach the coupler to your bike frame, then connect the trailer using the included pin—no tools required. Wide Compatibility: Fits most bicycles including mountain bikes, folding bikes, and standard bikes. Compatible with QR axles and solid axles up to 12.2mm. Works 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 Included: 2 x Bike Trailer Coupler