The lock is about 4 times heavier than the accessory I returned. The returned lock had shackles of very thin stamped sheet metal that could easily be pierced with a crowbar. Go to any camper discussion group and you'll read stories about wheel locks and ball locks that are easy for thieves to pick. This padlock is very strong, made from heavy gauge square tubing, much stronger than cheap padlocks. This lock is definitely worth the money if you want a real deterrent and no minor inconveniences to protect your trailer.