Post this warning bio-hazard sign as a warning to all in bio-hazard environments. The universal bio-hazard symbol is accompanied by text reading, “Warning Bio-hazard.” Constructed of high-quality plastic. Manufactured in the UK by Jalite. Photoluminescent coating glows in the dark. Yellow and black printed on a solid white background. Affix using sticky pads, double-sided tape or other standard adhesive. Your choice of two sizes. 200mm x 150mm or 100mm x 300mm.