The perfect enhancement for traditional or contemporary homes, the Polo keyed-entry ball knob from Kwikset is made from one piece of brass for optimal durability. The rounded design is proportioned to comfortably fit the palm of the hand. A silver metal color with brushed accents provides a crisp, clean look to this satin chrome finish. The knob top turns smoothly for easy opening. The knob rose"s smooth edge softens up the look for an aged appearance.This knob is adjustable for 2-3/8- to 2-3/4-inch backsets. The Kwikset 6-way adjustable latch that comes with this knob fits square-corner, round-corner or drive-in applications, and the latch has a 1/2-inch throw so that the door stays closed. Installation on standard doors is easy with this unit; a Phillips screwdriver is all you need. The purchase is backed by a lifetime mechanical and 5-year finish warranty, ensuring lasting function and exceptional beauty. --Brian D. Olson