NCHRP-350 compatibility - crash test results available Complies with MUTCD standards Lightweight - perfect for low wind applications. By eliminating a spring mechanism, this stand weighs 20% less that Dynaflex™ stands Fast and easy deployment with the kick release system. Legs lock into position when fully extended Displays 36" and 48" reflective signs using ScrewLock™ mechanism All aluminum and steel construction Telescoping aluminum legs with two-position height adjustment and anti-skid foot pads. Full extension length: 51". Open footprint: 92" x 53" Min. height from ground to bottom of panel: 12" For Roll-up Signs only.