The Marks Concorde Knob Rose Mortise Lockset is a high-quality, left-handed commercial door hardware designed for maximum security. This ANSI Grade 1 rated lock features a soft close function and comes in a sleek satin stainless finish. Suitable for commercial use, this locking system requires no batteries and provides peace of mind with its reliable performance. Upgrade your commercial door hardware with the Marks Concorde Knob Rose Mortise Lockset for added safety and style. Ships same or next day from Ohio,USA.