Feature●Polypropylene●Made of firm materials with adjustable chin strap. Made of Plastic.●Each helmet is approximately 11.5 inches long, 9 inches wide, and 6.5 inches tall.●Opening allows up to 61 cm circumference or 24 approximately inches. With strap closed approximate neck/head fit is 27-28 inches fully extended on the straps. Fits Snug.●Halloween military prop for costume and novelty use. Not a safety device.●Great Accessory for Costume For Adults, Army Reenactment, Theater and more.Description