aosom outdoor bike trailer with triple safety foldable bicycle cargo trailer luggage wagon with wheels removable cover and hitch black and greyWith this bike trailer from Aosom, the solid bag will keep all the contents safe and protected, with its bright flag making it visible to everyone. The solid steel frame attaches to your bike quickly and gives the storage bag a balanced and safe platform. The trailer for bike features two wheels for smooth movement when in motion, with reflectors on both for safety in the dark. Both wheels are detachable, so you can easily pack and store this bike