The sign holder has a 4 1/2 x 5 1/2 inch shovel base with a 12 inch (H) stem. This enclosure is 3 1/2 x 5 1/2 (H x W) and 7/16 inch thick. The sign holder is constructed from high impact black styrene plastic for durability. This frame has mitered style edges for a finished appearance and a slot opening for easily inserting cards. The sign holder is also available in a variety of other sizes to choose from and qualifies for quantity pricing when 24 are purchased at one time.