Signicade Sandwich Board with 24 x 36 Inches Write-On White Boards, White (BSW36PMAWT) Legs can hold sand to weigh unit down. Double sided to display 24"w x 36"h messages at any time. Glossy white plastic writing surface is designed for use with wet-erase or liquid chalk markers. Folds for storage and portability. Dimensions: Closed: 27"w x 46-2/5"h x 3-1/8"d Open: 27"w x 43"h x 37"d