Sanitize Hands Here Sign:The warning sign is waterproof, dustproof and UV protected, perfect for outdoor use. 7x10 inch is big enough to be easily understood and sure to be noticed without creating an aggressive environment. Any-Weather Metal Warning Sign: Safety sign is made of 35 mil high quality aluminum, with reflective coating and UV coating glossy finished. The warning sign will not fade no matter the sun, rain, or other extreme weather. Bright Color & Reflective Surface: Eye catching colors and contrasts can really attract people's attention, with reflective surface the signs can be seen even in the night, easy to read. Easy to Install: Warning sign has 4 pre-drilled holes and can be easily mounted on a wall, door, gate, or fence. (screws and zip ties not included). Signs aslo have rounded and burr-free corners for safe handling. Widely To Use: The sign is very suitable for indoor or outdoor use, suitable for many places, such as bar, cafe, dining room, billiard house, hotel, management center wall decoration, creating contracted but fashionable atmosphere.