MP279 Trailer Cop Universal Coupling Lock.
Universal coupling lock trailer cop suitable for most standard 50mm couplings
Lock fits into coupling blocking access and prevents tow-away theft
Expands in coupling
High quality construction
Non-corrosive body
Supplied with 2 keys
Instructions for MP279 Trailer Cop Universal Coupling Lock

Lift coupling handle to open position, insert lock & push in until handle can be returned to closed position. Note : slot on lock should be to either left or right side.
Remove barrel lock by turning key clockwise 90. Insert Allen Key provided, turn clockwise to expand lock inside coupling. Tighten Securely.
Replace barrel lock, remove key, (turn 90 anti- clockwise)