This sign holder comes with a 1 3/4 inch (D) suction cup and mounting clip for attaching to glass and other smooth surfaces. The frame is 7/16 inch thick black high impact styrene plastic with a slot opening for inserting cards. This sign holder is 5 1/2 x 7 (H x W) and can be used in either a horizontal or vertical position. The kit is simple and quick to assemble. This sign holder is available in several sizes and qualifies for quantity pricing when 24 are purchased at one time.