The Yale P-1037-CH Door Chain is a 6-inch (15cm) chain with a polished chrome finish, offering standard security. This surface-fitted accessory is designed for wooden doors and comes Visi Packed. It features a chain that helps identify a caller before the door is fully released, providing enhanced security and peace of mind. The product has a 2-year guarantee and a model number of 721037005162. The chrome effect provides added security and protection.