Headgear, Color Gray, Compatible with Brand Honeywell Fibre Metal, Compatible with Manufacturer Model Number F4500, Compatible with Series Faceshield Headgear, Dielectric Protection No, Features 7 in Crown, Channel Grip System, Heat , Ratchet Suspension, Slot/Pin Mechanism with Locking Cams, For Use With Attaches to E2Q and P2HNQ Series Hard Hats, Headgear Style Single Crown, Includes Ratchet Headgear with 7 in Crown, Material Plastic, Standards ANSI Z87.1