If you need to protect important notices, these cases are an ideal choice. Available for inside and outside use, they feature a 4 mm security glass front and lock with a key, perfect for safety and security. Features - Smart, modern design provides both protection and security for your important documents - Secure - tough aluminium frame with 4 mm thick security glass lockable door - Flexible - Hard-wearing cork for use with pins or white magnetic steel interior for use with magnets and dry-wipe marker pens - 1 cm border around each A4 page allows documents to really stand out - Easy to fit - unique fixing bracket for simple installation - 16 mm usable depth for pins/magnets - 3 year warranty