Xtremeauto Trailer Hitch Lock Ball - Caravan Anti-Theft Security Device, Zinc Alloy Expanding Lock for Caravans & Trailers Tow Hitch

Seems solid. It was easy to fit and adds another level of security.

Easy to use, and makes my caravan thief proof.

Great product. Just a bit fiddly to attach with the Allen key. But once in place a great security product unlike a chain which can be cut

This is my first negative review on Amazon but I feel this product warrants it - Good enough concept but very poorly executed. The little locking barrel that slides out to give access to the Allen key is fragile, quite temperamental and has a tendency to fall apart - the internal part of the locking barrel (the bit around the keyhole) slides out allowing the locking pins to fall out. On that note, the locking barrel is only held in place via a small brass pin that slides out a few mm into a groove inside the ball. Although untested, I feel this device is not remotely secure; it may well be very cheap but it's most certainly not worth the money nor the effort of installing it. Great service from Amazon as always though!!

Good