Hard Hat Label Diameter 2 in Height Not Applicable Material Vinyl Number of Labels 4 Preprinted Images Qualified Crane Operator Preprinted Text Qualified Crane Operator Preprinted Text Color Black/White Orange/White Retroreflective Grade Non-Reflective Self-Adhesive Yes Shape Circle Subject Matter Safety Personal Protection Awareness Visibility Standard Width Not Applicable Background Color White Language English Standards Compliant with Directive 2011/65/EU and 2015/863