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. Sturdy material: The door chain is made of 201 stainless steel, which is sturdy and durable, rust-proof, corrosion-resistant and wear-resistant. High quality material ensures 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 to Assemble: With the included set screws, you can easily install the door latch with chain. Also, the smooth surface of the chain won't 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. Specifications Material: 201 Stainless Steel Dimensions: As pictured Color: Silver Package Included: 1 x Door Safety Chain 6 x Fixing Screws Made of 201 Stainless Steel, it is durable and anti-theft, providing you with reliable protection for your home. Perfect tool for single people or families with elderly or children.