Brady 116209 10" Width x 7" Height B-563 Plastic, Black On Yellow Color Sustainable Safety Sign, Legend "Caution Hazardous Material Storage Area" Brady B-563 high density polypropylene sustainable plastic safety signs made of 70% post consumer waste Designed for use in light duty industrial, utility, commercial, and institutional environments; common uses include safety signs, utility signs, information signs, and equipment warning signs The sign construction is recommended for both indoor and outdoor use Thickness (ASTM D 1593): 0.055 in. ( 1.4 mm), gloss (ASTM D 523): 60 degree - 7 gardner units minimum Service temperature: -40 degrees F to 185 degrees F (-40 degrees C to 85 degrees C); average outdoor durability: 3-5 years