Vault Key Hole Signals quickly convey the status of locks to personnel and outside users. Ideal for use at banks, rental facilities, or post offices. Made of color-fast, nonchip plastic, the 7/8" prongs securely engage lock tumblers for a tight fit; the 1/2" head fits most popular lock brands. The color blue denotes rent overdue while other colors are designated for other signals.
Black - Death
Blue - Rent Overdue
Green - Special Uses
Orange - More than One Person To Open Box
Red - Officially Sealed by Bank or Court Order
White - Available to Rent