Features: Bump caps insert is hard to fade, which could be applied for long time use. Effective protections against bump, scrapes, bruises and other head injuries. Great for for a variety of outdoor activity or low-risk workplaces. Easy to use, could be easily and conveniently installed into a variety of hat, caps and headgears. This bump caps insert ideal for mechanics, automobile assembly, maintenance, industrial manufacturing, workshop processing, outdoor sports and so on. Specifications: Component: ABS Size: about 52.07x65.02cm/20.5x25.6'' Package Includes: 1 Pc Bump caps Insert note: Please allow 1-3cm errors due to manual measurement. Due to difference betweeen different monitors,the picture may not reflect the actual color the item.