Interior trim packs for Designer style and superior security with this Kwikset Signature Series (tm) product. Must purchase Kwikset exterior pack separately. For installation with Kwikset handlesets. Universal handing, fits both right handed and left handed doors. Keys Sold Separately. ANSI/BHMA grade 2 certified. Locking mechanism functions with turn piece on the interior of the lock. Easily installs in minutes with just a screwdriver. Lifetime mechanical and finish warranty.