Ogawa Studio Triceratops Mask with Collector's Box Includes: One High Quality Triceratops Overhead Mask with Collector's Box Size: Teen/Adult One Size (15+ years old) Head circumference fits between 22.8 to 24.8 inch(58 to 63 cm); Mask Length about 16 in, Mask Width about 14.5 in Made in Japan Material: Rubber Latex