Steel material and wire drawing treatment: The anti-theft chain door lock is made of stainless steel, which is sturdy and durable, not easy to fade and corrosion resistant. It can ensure your safety and have a long service life. The three-layer wire drawing treatment on the surface resists daily scratches and prevents collisions and kicks. Safety lock: There is a button with a spring-loaded anti-theft button. The chain can be opened by pushing the buckle, effectively preventing outsiders from reaching the inner hook and falling off the chain. This design will drop your chain and protect the house more tightly, making your home safer. Thick Chain Design: The 3mm thicker chain is durable, not easy to break, and not easy to break when pulled hard. It can be used for a long time. Compared with traditional chains, our chains can provide you with safer protection and give you and your family more security. Easy to Install: The set includes a door chain lock and four screws that you can fix behind the door. The chains can be used on wooden or metal doors on all types of doors and can be placed above or next to the door frame. (The greater the distance between the buckle seat and the base, the smaller the opening angle) Anti-theft Protection: The security door chain provides additional protection based on door locks and bolts that can effectively prevent the intrusion of thieves and strangers, which is very suitable for people living alone. It can also prevent unauthorized children from leaving the house, providing additional protection for children's safety. High-quality stainless steel The product is stamped and made of thick stainless steel sheet and has a longer service life. Provides additional security for residential and apartment doors. The 3-layer brushed finish can resist daily scratches, corrosion and discoloration. Smooth movement The interior door lock should not be a burden that makes you worry about having to force it open. They should just be an additional security feature of the door to ensure your safety. Ensure the safety of children These door chains can also be installed in places out of reach of children, so that they cannot open the door by themselves and no longer have to worry about them suddenly run outside to provide extra safety for children. Suitable for all types of doors The door chains can be used for wooden or metal doors of different types of doors and can be placed above or next to the door frame. Features Material: Stainless Steel Main Color: Silver Features: Perforated/Brushed Steel Package Includes 1 x Door Chain 2 x Base Plate Exquisite Design - The new design, smooth line and flexible cable make it ideal for you.