The Stronghold Strongbox Hitch lock. Fits Alko, Albe,Winterhoff, Harrison. B & B and most other original open handle hitch types. This high Level Security Hitch Lock carries a full two year warranty and is insurance approved. Benefits include - Fits hitched and unhitched, High Security Pick Free Lock, 3 Keys, Robust Steel Construction with Anti- Prising Lip. Supplied complete with a robust carrying/storage case.