2 pieces coupling for bicycle trailer Features: Practical: This bike trailer coupler allows you to connect a stroller or pet trailer to your bike. Compact and lightweight, easy to carry and use. Sturdy: Made of high-quality steel with a black enamel coating for enhanced durability, resistance to rust and corrosion, and reduced risk of deformation. Safety: The bike hook secures firmly to the bike frame, ensuring stable connection and preventing accidental disengagement during use. Easy Installation: Attach the trailer hook to your bike, then connect the bike and trailer using the included connecting pin. Wide Compatibility: Fits mountain bikes, folding bikes, and standard bicycles. Compatible with QR axle and solid axle up to 12.2mm. Suitable for child trailers, pet trailers, and other cargo trailers. Specifications: Material: Steel Load Capacity: 40kg Quantity: 2 pieces Weight: 252g Dimensions: 7 x 3 x 3.5cm Package Included: 2 x Bike Coupler