Displays2go SS15A3040 30 x 40 Inches Sandwich Board for Sidewalks, Double Sided Snap Open Sign Frames with Springs for Movement, Aluminum (Silver) Snap open frame for prompt display adjustments. Large base keeps the floor-standing poster frame stable at all times Shocked springs work well in heavy wind gusts Designed for a (2) 30" x 40" posters Dimensions: Overall: 32"w x 52-1/2"h x 29"d