Aquatic Technology 1009WS1824E 18"x24" Orange California No Liftguard Warning Sign measures 18 x 24 inches, is printed on .040 mil Styrene Plastic, and is designed to warn patrons to not allow children under age 14 to use the pool or spa unattended. The lettering is 4 inch and 1 inch and meets California state code. Our Warning signs indicate a potentially hazardous situation which, if not avoided, could result in death or serious injury. This sign is lightweight, durable and weatherproof for indoor or outdoor use.