Trimcap letters are made in two parts, the face which is usually cut from 1/8" Acrylic sheet, and the trim which comes in several colors for a contrasting look. The trim is 1" deep and is applied at the factory to the outer edge of the acrylic face. The letter or number is quite light and hollow in the back. Mounting hardware is applied to the back side of the face and protrudes backward into the wall or substrate, secured there with silicon adhesive. Trimcap letters start at 6" tall for Block type fonts and 10" tall for serif and script type fonts.