Funny Party Hats Lion Nose Mask - Animal Masks with a Elastic Band Roaring lion costume mask measures about 2 3/4 inches, Made of soft vinyl, and straps on with an elastic band around the head. It fits wearers of any age, but is not recommended for children under 3 years of age. Wanna be a Lion? the King of Beasts? Simba? or Nala? Makes for a simple costume all by itself, or serves as a great addition to other full costumes.