Designed to display the clinical waste UN Number and Emergency Action Code together with the Hazard Warning Diamond. The unit is fully ADR compliant with retro-reflective vinyl and embossed to withstand 15 minutes fire engulfment. The unit is hinged in the middle so by simply folding in half the information is obscured when the vehicle is running empty.In this case the telephone number ,logo and any other information printed on the back can be displayed. Manufactured from 304 2B stainless steel with 3 back flap hinges and 3 swivel catches to retain unit in position in either its open or closed position.