Back Plate Length: 175mm, Back Plate Width: 50mm, Lever Length: 110mm, Projection: 55mm To be used in conjunction with a tubular latch (Sold Seperately) Includes spindle bar and fixings required for installation. Suitable for use on Solid Doors with a 30-45mm thickness 10 year mechanical garuntee - based on 100,000 cycles, Manufacturer: ‎Hiatt Hardware