This DOORMASTER® 12 inch 40-80mm letter plate has a gold anodised aluminium rounded flap on a matt black finish shallow frame which gives a modern and contemporary look. These letter plates are used for composite doors and timber doors as they have a central sleeve, meaning that it can fit in mid rails. With ultra-flexible springs the flaps can open up to 180 degrees, limiting the risk of the flaps snapping off. Each DOORMASTER® letter plate has an Anti-Vandal™ facility where the brushes are outward facing, this acts as a visual deterrent to vandals as it makes it harder for unwanted objects being passed through the cavity. Also, there is an internal water seal which prevents water getting into the door and will keep letters/parcels dry. DOORMASTER® Letter Plates conform to many standards and testing requirements including BS EN 13724.