From Yale, the P1037 Door Chain is a surface-fitted security accessory designed to help you identify a caller before the door is fully released. A simple addition to your door, it offers a practical way to control access while keeping the door partially secured. Created for straightforward fitting, this door chain is described as simple to install and can be fitted in minutes, making it a convenient choice when you want an extra layer of reassurance at home. Key features Helps you identify a caller before the door is fully released Surface-fitted security accessory Simple to install Can be fitted in minutes Brass finish Model number: P1037 Please note: Colours shown are as accurate as possible, though may vary slightly depending on your screen settings.