The new vertical panel is a back plate mounting panel designed for the 5" house & letters. The back vertical plate is available in the following 5 sizes and four different colors that can accommodate from a single digit up to 5 numbers. The mounting panels are machined from a solid piece of aluminum with a 4mm solid material thickness. The numbers / letters are pre-mounted onto the panel which have pre-drilled holes based on the exact numbers and letters that have been order. Everything gets assembled for you and shipped in one ready to mount panel. Concealed mounting studs anchor the panel to the wall. The mounting panels are available in satin black, bronze, satin alu or in satin brass materials. How do you order the plate? The panel can only be ordered in conjunction with the 5" numbers, the holes are pre-drilled for the numbers sequence you are ordering. All backplate mounting panels require a full set of spacers.