One Lane Road Flexible Roll-Up Traffic Sign - 36 x 36 - One Changeable Legend W20-4

One Lane Road Flexible roll-up signs are made of Type VI microprism retro reflective SUPERBRITE sheeting heat sealed to a heavy-duty vinyl coated fabric. Legend and border are silk screened with black ink. Reinforced fiberglass cross brace ribs with flag holder provide a lightweight, rugged, easy to set up and take down temporary traffic sign. Excellent daytime visibility, plus the brightest nighttime retro reflectivity available. Meets FHWA requirements for NCHRP350 FHWA Acceptance WZ-18. Requires 3 special safety warning flags with detent button. Black and white legends do not require safety warning flags. Signs, stand, and flags sold separately. W20-4