Green Letterman II wall letterbox with newspaper compartment This worldwide bestseller, the Letterman II wall letterbox, impresses with a spacious newspaper compartment that guarantees a crease-free newspaper or magazine. Letterman II also impresses with its unusual design. The letterbox is made of steel with a green powder coating. The glass porthole is surrounded by a ring of shiny stainless steel. The letterbox opening measures 32.5 cm x 3.5 cm, large enough for letters up to C4 format.