Brand: ProSourceSize: 4-1/4" Wide X 2-11/16" TallFinish: Satin BrassFor Use On Doors 1-3/8" To 2-1/4" ThickBackset: 2-3/8"Single Cylinder, Keyed Exterior, Thumb Turn Knob On InteriorIf Cylinder Is Removed From Outside Of Door, Shutter Guard Will Activate, Preventing Opening Of The Lock With A ScrewdriverNot Recommended For Doors With Glass Panels, You Can Break Glass Reach In and Turn Knob On Single CylinderKeyed DifferentComes With 2 Keys And Mounting Hardware