Dark Legions Roman Galea Armor Helmet 18G Carbon Steel Horse Hair Plume Overall Height w Hair: 18.5 Inches. Circumference: 27.5 to 28.5 Inches Inches. Helmet Weight w Hair: 6 Pounds &amp; 5.5 Ounces, (6.344 lbs). Helmet Weight w/o Hair: 5 Pounds &amp; 10.8 Ounces, (5.675 lbs). Designation: Roman Galea Helmet, European Classical Period. Materials: Handforged Carbon Steel, Stamped, Plated 18ga &amp; 19ga, Riveted. Size: Fits Adult Sizes. Steel Thickness: 18ga Per Layer Average. Fastening Type: N/A Hinged Cheek Protectors: 6.625 Inches, Plate Steel Exterior Finish: Glossy Black Painted, Gold Painted Metal Trim & Decorations. Crest: Steel, Longitudinally Mounted by Brass Screws, May Require Tightening. Plume: Authentic Horse Hair, Fits Snug into Crest w/o Fastening, Removable. Hair Length: 4 Inches.