The Kwikset Polo 300P15 CP is a classic round privacy door knob designed for interior bedroom and bathroom applications. It features a sleek Satin Nickel finish that provides a modern feel and fits both traditional and contemporary home decors. This Grade 3 certified lock offers a privacy function where both knobs are locked or unlocked by a turn piece on the inside, while the outside can be opened with an emergency key if needed. It includes an adjustable latch to fit all standard door preparations (2-3/8 inch to 2-3/4 inch backsets) and is suitable for door thicknesses between 1-3/8 inches and 1-3/4 inches. The unit features Microban antimicrobial technology to keep the hardware 99.9% cleaner than unprotected surfaces and comes with a lifetime mechanical and finish warranty