2 Pieces Bike Trailer Coupler for Qeridoo Bicycle Trailer – Coupling Adapter Set 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. Safe: Designed to securely attach to your bike and remain firmly in place during use, ensuring safe riding conditions. Easy Installation: Simply attach the coupler to your bike frame, then connect the trailer using the included pin for quick setup. Versatile Compatibility: Fits mountain bikes, folding bikes, standard bicycles, child trailers, and pet trailers. Compatible with QR axles and solid axles up to 12.2mm, suitable for most family needs. 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