Displays2go 24" x 36" Outdoor Sidewalk Signs with Stable Base, Double Sided, Coroplast Boards (SWS2436BK) Double sided for displaying (2) 24" x 36" graphics. Your custom sign boards slide into position with ease. Plastic construction is rust- and splinter-proof. Black exterior is neutral color for use in many different environments. Displays2go SKU#: SWS2436BK