ONLY VISUAL! It seemed strong and well made so I ordered it for my brother. Today I forgot to remove the lock before leaving. I descend very slowly as usual, which means my foot was still on the brake. I immediately realized I forgot to remove the lock and quickly stopped. The crossbar had been broken cleanly. This was with a completely empty closed 12ft trailer. I think the silver lining is that it was so cheap that the crossbar came loose before it even touched my fender, preventing serious damage. I bought three pieces, too bad it's too late to return them.