Mandatory Sign:This Is A Hard Hat Area Safety Helmets Must Be WornAvailable in the following sizes/materials:180 x 240mm Self Adhesive300 x 225mm Metal300 x 225mm Polypropylene450 x 300mm Metal450 x 300mm Polypropylene600 x 450mm Metal600 x 450mm Polypropylene600 x 450mm Corflute450 x 200mm Metal450 x 200mm Polypropylene300 x 140mm Self Adhesive600 x 450mm Metal Class 1 Reflective600 x 450mm Metal Class 2 ReflectiveIf you require a size/material not listed here, please contact us here, quoting sign number 105 and we will work on a custom sign solution for you...