The Close Door At Night 5123 Sign can be placed at eye level, on any door that must be kept open throughout the night. The sign is AAA photoluminescent and this means that it would even glow in the dark, if there is a lack of lighting.
For safety and security purposes, it may be essential to display this type of sign. Have one on each side of the door to ensure the rule is respected and seen by everyone.
Fixing requires anything as simple as sticky pads, 'No-nails' type adhesive or double-sided tape.