You can finish it in seconds by just removing/tightening a nut.^ Made of high quality material, durable to use. ^ You can complete it in seconds by removing/tightening just one nut. It is easy to loosen or attach the bike trailer hitch attachment to the rear bike assembly.^ The bike trailer hitch attachment to the rear wheel assembly from the bike is easy to detach or attach.^ GREAT DESIGN: Special design for your bike^