Kodia DC 427 "Boxer" brass door chain, a door security chain that lets a door open only part way, so a caller can be seen before the door is fully opened. It belongs to Kodia's brass door chain range and is offered in SS, Ant. and S/G finishes. The "Boxer" has two rounded, capsule-shaped plates with grooved bands near each end. Each plate has a keyhole-shaped slot, two screw holes for fixing and a round-headed stud that carries a ring, and a twisted-link chain joins the two rings. The silver-tone version has a bright polished finish. Catalogue code: DC - 427, DC 427