1.Material:ABS high strength engineering plastic 2.V-Shape, spiral, super quality 3.Adjustable buckle, moisture-aborbtion ABS Anti-Crash Orange Mine Worker Use/Building Site Use Protective Safety Helmet:1.Material:ABS high strength engineering plastic 2.V-Shape, spiral, super quality3.Adjustable buckle, moisture-aborbtion More detailed photos: Delivery detail: (1) Sample: 3-5days after confirming ...