Bike Trailer Coupler Heavy Duty Bicycle Trailer Coupler Hitch Attachment for Baby Trailers and Most Bicycles

Feature: 1. Made of good quality aluminum alloy, durable and sturdy, equipped with accurate welding technology, can bear heavy duty. 2. Equipped with a connect pin, can hardly get opened, also once you install them up, they will not easily fall off, which can ensure your baby s safety. 3. Easy to install, only you need to do is fix them with a screw nut on the bike, and insert the trailer attachment, put the pin on. 4. A bike trailer coupler is a part that you can connect your trailer to your bike allowing you to transport your little ones in safety and comfort. 5. This bike trailer coupler hitch attachment is suitable for baby trailers and most bicycles. Specification: Item Type: Bike Trailer Coupler Material: Aluminum Alloy Bicycle Fixing Hole of the Rear Axle Diameter: Approx. 11mm 0.4in Trailer Fixed Hole Diameter: Approx. 7mm 0.3in Recessed Area Screw Nut Fixed in Diameter: Approx. 21mm 0.8in Base Plate Length: Approx. 55mm 2.2in Application: For baby trailers and most bicycles. Package List: 1 x Connect Pin1 x Coupler Note: 1. Please allow 1‑2mm 0.04‑0.08in error due to manual measurement.2. Please measure your trailer coupler and bike mount size before order this adapter.