This chain door lock is constructed of stamped steel and comes in a chrome-plated finish. It features a welded steel chain with all fasteners necessary for complete installation. This chain door lock can be used on a variety of door types. The smaller chain-holder base plate can be mounted on, or beside the door’s casing, as it measures only 3/4 inch wide, by 2-3/8 inch tall, and the wider chain lock keeper measures 3-5/16 inch long with a height of 1-3/8 inch. This chain door guard also works great as a child-safe security device which can help prevent little ones from fully opening doors and entering or exiting into dangerous areas. This security door lock is easy to install and used by many.

• •Used on swing-in entry doors to provide security when opening for ventilation, and safe viewing of visitors
• •3-7/16 inch mounting plate
• •Chain base features a chain clip holder to prevent free-swinging chain when not in use
• •The mounting plates of these chain door locks are constructed of stamped steel and come in a chrome-plated finish
• •These secondary security chain door locks allow for safe ventilating and opening of entry doors