Uses: Easy to open and close by replacing the existing door handle with the lever. Product Name: Bathroom Door Knob Replacement Set with Lever Handle, Divider Lock Type 90 Model Number: 0810-7982 Color: Ivory only. Compatible size: Door thickness 1.0 to 1.6 inches (25 to 40 mm), backset 3.5 inches (90 mm), front size 2.3 x 1.0 inches (59 x 25.3 mm), mounting screw pitch 1.6 inches (41 mm). Material: Resin Features: Can be replaced with tubular keys, and can also be used with a threaded cylindrical key. Can be locked from inside the room while bathing. Accessories: None.