The flagger sign alerts drivers to upcoming traffic changes and to be alert for construction workers. These signs are made of .080 aluminum which is rust resistant and durable. Signs are available with EG or HIP sheeting and come in a bright fluorescent orange color. They have pre-punched 3/8" mounting holes and Radius corners. All signs meets MUTCD Specifications for Highway use. The signs are designated for years of outdoor use. Please specify distance for your sign.