Classroom Happy Birthday Crowns will make each and every child feel special on their big day! The set contains 30 vibrant crowns measuring 14.5in x 5.12in, and features elastic bands to ensure a good fit for most head sizes. Celebrate in style with colorful paper crowns that are sure to bring the birthday fun. The set of party hats for kids includes 30 colorful happy birthday crowns with elastic bands to ensure a good fit for most head sizes. Birthday hats are great for both birthday party classroom décor and at-home party décor that can be used year-round. Printed on durable card stock paper, each easy-to-assemble.