The QL12SB 3 IC Is a Arrow Cylindrical Lock, Storeroom Lever Lock, S Lever, B Rose, SFIC Prep Less Core, Bright Brass Finish. The Arrow QL Series is a robust Grade 1 lockset featuring a Freewheeling Lever for abuse resistance, two screw lockset install for quick installation and a 10 Year Mechanical Warranty. The perfect solution for replacing or upgrading lockets in commercial applications.