Fluorescent “STOP” on one side, “SLOW” on the other, these handy double-sided stop/stop signs come with 10″ all-wood handles. Durable, lightweight and weather-resistant. Thousands have been sold. Available in hardboard (like Masonite®) and rigid polyethylene plastic. The lighter plastic is often favored by crossing guards, the more traditional hardboard is more popular with construction workers. 18″ in diameter.