The Sandleford door lever and knob collection features both traditional and modern styles. Our extensive selection fits all types of doors and comes in all shapes and sizes. Our wide selection of materials and finishes ensures that you can discover the ideal style for your house. Quality and engineering complement aesthetics, and a 7-year mechanical guarantee provides you with peace of mind. Lock lever set: For doors that need to be secured with a key, like office doors. appropriate for mortice sash locks.