The full brim design provides full protection from rain directly entering your eyes. The inside of the helmet is made of comfortable cotton fabric that absorbs sweat and breathes, designed for endurance at heights, and meets safety testing certification to protect you from falling objectsName: hard hat/construction hat/safety helmetMaterial: aluminum alloyLining material: cotton liningColor: red, silver, yellow, orange, greenWeight: about 400gHead circumference: about 60cm (adjustable)Size: 31cm x 27cm x 13cmApplication: site construction, engineering construction, railway constructionPrecautions:1. Before use, please check whether the appearance of the helmet has cracks, bumps, unevenness, wear, whether the cap lining is complete, and whether the structure of the cap lining is in a normal state. If there is a performance problem, please stop using it and discard it immediately.2. When wearing a helmet, you need to adjust the headband according to the size of the head and fasten the chin strap3. After a severe impact, the helmet should be replaced even if there is no obvious damage4. We always strive to provide our customers with the best service and products. If you have any questions or problems after receiving the product, please feel free to contact us directly