Plantex Heavy Duty Night Latch Door Lock with Key & Knob for Main Door/Inside Opening for Home,Hotel,Office - (Matt) 𝐌𝐚𝐭𝐞𝐫𝐢𝐚𝐥: Plantex night latch inner parts are made from brass material and outer body is made from metal material with matt finish. Which is rust-proof, scratch-proof, and corrosion-free for long life of night latch lock 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲: Rim Lock comes with wider & thiker bolt with double throw (provide enhanced security to your property), aldrop knob (ultra-bolt feature once a locked it cannot be open even by key) for inside lock/unlock and key lock for outer side lock/unlock 𝐔𝐬𝐚𝐠𝐞: Night latch are commonly used on exterior doors, such as front and back doors, to provide additional security. Night latch are considered to be more secure than traditional spring-bolt locks because the bolt extends further into the door frame, making it more difficult to force open. The primary latch in a night latch has a square leading edge and is spring-loaded. The latch is withdrawn into the casing as you turn the inside knob to allow you to open the door, but you can close the door by simply pushing the door into its frame. These locks always need a key to unlock them from the outside 𝐒𝐢𝐳𝐞: The size of Night latch dead bolt lock is 16 x 5 x 9 Centimetres and package contains- 1-piece Lock body, 1 Piece Outer Ring, 1 Pc. Strike frame, 4 Pcs. Reversible Key, Screws. You can start using it by installing right after you receive it At 𝐏𝐥𝐚𝐧𝐭𝐞𝐱, we offer a comprehensive selection of home improvement products to enhance your living experience. Our goal is to provide top-notch products that not only meet your needs but also fit your budget. We take pride in delivering quality and affordability for everyone.