The Door Guardian is dually functional, as it both secures and reinforces doors. The Door Guardian is an indispensable addition to any household, especially those where small children are present. The Door Guardian provides an effective solution for child-proofing, as well as helps to prevent forced entry into your home. The Door Guardian Childproof Deadbolt and Security is ideal for use in homes with: - Access to pools or busy streets - Small children, especially those prone to wandering - Children, teens, single women, elderly, or anyone that is often alone - Children or adults that sleepwalk - Family or love ones affected with Alzheimer's Disease, Parkinson's Disease, Huntington's Disease, Dementia, or Autism The Door Guardian can be installed on most any inward-swinging door. Applications include, but are not limited to: - Front Doors - Side Doors - Back Doors - Balcony Doors - Double Doors - Garage Door Entrances - Pantry Door in the Kitchen The Door Guardian Childproof Deadbolt and Security Lock may be installed anywhere along the door frame. It may be used on both exterior and interior doors. Its sleek design does not detract from the appearance of your door. Finish: Black. Available, also, in Satin Nickel , Satin Chrome , Brass and White , For Installation Instructions, please, click HERE.