Caraloc 400 Complete Left Hand. Suitable for door thickness from 24mm to 50mm, Exterior Size is 156.5mm (L), 76.2mm (W)and 5.5mm (H) and Interior Size is 110.5mm (L), 51.6mm (W) and 19mm (H), or 40 mm high including the handle. * You need a Left Hand Lock if the hinges on your Caravan or Motorhome Door are on the Left hand side when looking from outside of the Caravan or Motorhome. Part Number PO394