Product Description This 2 piece shield is constructed from steel and comes plated in brass. The interlocking brackets help to protect your door from forced entry. It requires no mortising and may be applied to wood or metal inswinging doors. From the Manufacturer This 2 piece shield is constructed from steel and comes plated in brass. The interlocking brackets help to protect your door from forced entry. It requires no mortising and may be applied to wood or metal inswinging doors.