Features: These mortise door bolts are recessed into the door or window frame rather than being surface mounted. This conceals them and provides an additional point of security. They are easy to install and simple to use. A toothed hole in the lock is operated by a standard star key (supplied), which allows the bolt to be opened and closed smoothly. SECURITY: A strong and sturdy lock made of solid steel. Its durable and neat finish will remain intact in all outdoor weather conditions as well as complementary interior fittings. Please refer to the images for installation details. SIZE AND FINISH: Bolt length is approximately 62mm (actual size may vary slightly). FITTING: Mortise racks are a simple yet effective way to add security to your doors and windows. They can be used individually to provide an additional concealed locking point or installed in pairs at the top and bottom of doors to provide additional security. Package includes: 1 lock cylinder, 1 key Color: silver Size: as shown