1 Piece Of Stainless Steel Door Chain Safety Lock, Anti-theft Solid Sliding Lock Security Guarantee: Chained door locks are very effective in preventing you from being stolen or forcibly entered. It can help you identify visitors without fully opening the door. Ideal for providing you with reliable transmission. Solid material: The door chain is made of 201 stainless steel, which is sturdy and durable, rust-proof, corrosion-resistant and wear-resistant. High-quality materials ensure that you can use it for a long time. Prevent children from going out: The chain lock is installed at a height out of children's reach, which is convenient to prevent children from going out without their parents' knowledge. Suitable for families with children. EASY ASSEMBLY: With the included set screws, you can easily install the latch with chain. And the smooth surface of the chain does not hurt your hands, so you can use it with confidence. Wide range of application: suitable for all kinds of doors, such as wooden doors, iron doors, etc. Ideal for use in homes, bedrooms, hotels, restaurants and more.