Security Guarantee: The door lock with chain is very effective to prevent you from being stolen or forced to enter. It can help you identify visitors without fully opening the door. To provide you with an ideal choice for 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. The 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 that children can't reach, which is convenient to prevent children from going out without their parents' knowledge. Suitable for families with children. Easy to assemble: Using the included fixing screws, you can easily install a door latch with a chain. Moreover, the smooth surface of the chain does not hurt your hands, so you can use it with confidence. Wide range of applications: suitable for all kinds of doors, such as wooden doors, iron doors, etc. Very suitable for use in homes, bedrooms, hotels, restaurants and other places. Specifications Material: 201 stainless steel Size: as shown in the picture Color: Silver Package includes: 1 x door safety chain 6 x fixing screws Made of 201 stainless steel, it is sturdy and durable, anti-theft, and provides reliable protection for your home. The perfect tool for people living alone or families with elderly or children. Suggestion: Please check the size of the product before ordering. For manual measurement, please allow some errors. Our products are not suitable for children under 3 years old.