The Kwikset 450P-26D Polo Storeroom Keyed Entry Door Knob in Satin Chrome is a sleek and functional door knob designed for vestibule keyed entry storeroom use. With a round rosette shape and a projection of 2.75 inches, this door knob is suitable for various door thicknesses ranging from 1 3/4" to 1 5/8". Made of durable material and featuring a 5 pin cylinder, this Grade 3 BHMA certified door knob offers a transitional design that complements a variety of residential and commercial styles. The Satin Chrome finish adds a touch of elegance to any door.