This is the second lock I have bought and it was worth it. This lock saved my caravan. The trailer was parked in front of my office and someone tried to steal it. We came back the next day and the thief cut off my hitch lock and stole the wheel the lock was attached to. We assumed they took it somewhere to cut the lock and came back on the bike to collect the trailer. I've since added locknuts (2 different types), a much stronger link lock, a "trunk" type wheel lock, and this lock again. Nothing will stop a thief but this lock definitely saved my caravan.