Silver anodised aluminium plate 2 mm thick. The plaque is complete with pantograph engraving and black enamel, with two 2 mm thick mirror polished aluminium letters applied with double-sided adhesive. A clear varnish is then applied to protect the plate and thus considerably prolong the quality of the workmanship. Instead of double-sided adhesive tape, back pins can also be used to attach the aluminium letters to the aluminium number plate.