Replica Antique 18" Diving Vintage BOSTON MARK V U.S Navy Deep Sea Divers Helmet Measurements: Dimensions(Height) : 18'' Inches Approx. Weight : 5.5 Kilogram Approx. Top Head Measurements : 16" x 12.5" x 17" / 40cm x 32cm x 42cm Approx. Material : Aluminum, Iron & Steel Finish : golden Chrome & Brass Plating |