INTRODUCTORY OFFER – NEW MODERN CONTEMPORY DESIGN. TWO TONE – BLACK NICKLE & SATIN. Marina Back Plate Lever Latch Handles. This contemporary door handle is supplied as a pair of door handles. With fixing screws and a 7.9mm spindle. Backplate: 189mm x 45mm. Backplate Projection: 10 mm. Handle Length: 112 mm. Finish: TWO TONE POLISHED BLACK NICKLE & SATIN.