MSA Helmet Retro-Reflective Silver Decal Striping measuring 1/2 in X 26 1/2 in has a thickness of 6 mil and ideal for use with V-Gard caps and full brim hats only. It helps to enhance the visibility of workers in nighttime/low-light conditions such as dawn, dusk or night that ensures safety for outside working conditions. Helmets are pre-treat prior to striping with an electrical discharge treatment to enhance the ability of the stripes adhesive bonds.