Finish: Bright Brass *Hardware Included: Yes *Length: 4 *Material: Steel *Number in Package: 1 *Packaging Type: Clamshell *Brand Name: National Hardware *Product Type: Door Chain Lock *Security Grade: Grade 3 *Eye: *Indoor or Outdoor: Indoor and Outdoor *Sub Brand: Manufactured from zinc die-cast *Provides added security on residential and apartment doors *Can be easily installed on either wood or metal doors for installation flexibility *Allows door to open partially while still proving security