The Clarion Safety Systems F1145-S2SW3 Danger No Entry Sign is a high-quality, weather-resistant sign made from 0.060" rigid white plastic with a 3M ultra-clear overlaminate. It features vibrant, fade-resistant colors and is designed for easy installation on walls, doors, fences, and gates. The sign measures 18" x 12" and has corner mounting holes for secure placement. With excellent chemical and UV resistance, this sign is suitable for indoor and outdoor use in a variety of settings, including manufacturing, medical facilities, and public buildings.