UAL™ Biohazard Pre Printed Label, 3 x 3 Inch, 1 Pack Jobst for Men 20 30 Knee High 5 FOOT CUT LENGTHS * Style:Pair (Left & Right) 5 FOOT CUT LENGTHS * Heavy ( Blue & Black) * A special system of progressive resistance * Can be used for both the upper and lower body muscles * Approved for use by the APTA * Comes in retail clam pack and can be hung on a display hook Meets the ISO 11607 microbial barrier challenge Hazardous chemical containers used within a nonlaboratory area must follow Occupational Safety and Health Administration hazardous communication standards so use these for OSHA compliance within your workplace Fluorescent red hazard communication labels