Outdoor Safety Helmet is made of impact-resistant ABS material, which is puncture-resistant and wear-resistant Construction Hard Hat features polycrystalline solar panels use sub-layer panels, which can be exposed to sunlight and rain for a long time, with a lifespan of about 8-10 years. Industrial Safety Hat adopts rotation lock, can rotate and adjust the size of the cap lining, suitable for any size head type and comfortable to wear Safety Helmet with six-point headband is more stable, the size of the headband can be adjusted by itself, the wearing is firm, and the adjustment is convenient This is a solar fan helmet, solar energy automatically up, lasting battery life, strong wind, Weight: 0.78484565272 pounds, Manufacturer: Pesoncarl_D93_5014509