Qrity Door Handle Lever, Euro Lever Lock, Cylinder, 3 Copper Keys, Zinc AlloyMaterial: This door handles is made of high quality zinc alloy, which has excellent corrosion and oxidation resistance. The copper keys and copper cylinder are more sturdy and less prone to deformation, so the lock have a longer service life. Center distance: 50mm; Side Whipstitch Distance: 45mm. The suitable thickness for the door is 35mm to 55mm. Handle Length: 120mm; Handle Panel Size: 200x48mm; Lock Body Size: 118x63x12mm; Cylinder Size: