Specifications Made in USA Highly Visible Weather resistant Great addition to any retail store Make a curbside impression Your advertisements will jump out and grab people's attention The only wind conditions you need to worry about with this sign are HURRICANES & TORNADOS! Fill the base with water (45lbs) or sand (90lbs) for ballast. The sign frame is attached to the base with heavy-duty coil springs that give with the wind and then return to the original upright position. If you need to move it, it's got wheels...Just tilt and go with the built in handcart! It's even got a molded in tie-down hole to prevent theft. Made from high impact resistant plastic that won't crack, peel or splinter from ANY weather conditions!