【NOTE】 Only for Left-hinged Outswing Door(View from Outside) 【Dimension Specification】 Only fit for 1" Or 1.38" (25mm Or 35mm) thickness door; Requiring 7/8" (21mm) Backset; Mortise size on the edge of the door: 5-3/4" tall by 3/4" width by 1-23/40" depth (146*20*40mm); The front and back plate, where the handles are, is 7-1/4"(185mm) from center to center of the screws 【Higher Security】 This handle lockset features a double cylinder lock that is keyed on both sides and adds security. You can lock the door from the outside and inside with the key 【Durable】 The solid brass made handleset in polished brass finish is wear, spark resistant and resistance to corrosion for long time use 【Excellent Appearance Design】Stylish design of lever lock door handle will enhance the look of your door and your house. Appropriate for the back door, patio door, apartment door, greenhouse door, office door, screen and storm door, etc. The lockset is suitable for large section material door such as stainless steel, wood, iron, etc. Newfield Solid Brass Double Cylinder Handle Lockset This handle set is made of brass which is wear-resistant, spark resistant, and resistant to corrosion. Three optional finish types, polished brass, satin nickel, and bronze, match up the decoration of your house. Besides, what makes this handle lockset different is its stylish appearance, which will enhance the look of your door and your residence. It is appropriate for the back door, patio door, apartment door, greenhouse door, office door, screen and storm door, etc. In addition to the durability and the attractive appearance, this handle lockset features a double cylinder lock which adds security. This door handle lock set is designed for both right-handed and left-handed doors. The latch bolt is reversible, so you can rotate the latch bolt if you need to install the handle set in another direction