Usage Tips:Quality materials: Our bicycle trailer hitch is made of stainless steel and the surface is coated with black enamel. It is more rust-resistant, stronger and more durable than ordinary steels. Easy Installation: Our bike trailer is easy to install, no additional tools required. First connect the bike trailer tow bar to the bike with bolts and nuts. Then insert the trailer hitch, finally put it on the pin and the connection is done, which brings you much convenience. Universal design: suitable for children's trailers and most bicycles . Ideal for family use and perfect for towing the trailer. Note: Please measure your tow bar and bike rack size before ordering. Wide Application: The trailer connector of the bike trailer can connect the trailer to the bike and you can transport your children safely and comfortably. Note: The data is manual measurement, please allow 1-31cm error, due to the light and screen differences, there there will be a certain color difference, the specific received in kind prevail.