Reese Professional towing locks offer triple protection for the most theft resistant locks available. A patented design maintains shaft diameter for maximum strength and stronger break resistance. The dual locking design has locking ball bearings that remain extended in the shaft, disabling removal even if the lock is broken. A square key design virtually eliminates lock picking and offers thousands of combinations to reduce common key issues.
Bought two of these locks for my application. One works smoothly and perfectly. The other one has some slight internal binding which makes it a little more difficult to lock and unlock when in position. Tried lube with no difference in performance.