Great to use for rewarding good behavior and academic achievements Add a playful pop of color to calendars, bulletin boards and anywhere else in the classroom Wonderful way to get kids excited about 100 days They are stickers so easly can wear them on their shirts all day Acid Free Celebrate completing 100 Days of School with these fun Hooray 100 Days sticker badges! Students will proudly wear these color badges all day long to celebrate this milestone. Parents will enjoy seeing students come home with their badge and be excited to hear about their 100th Day of School festivities.36 adhesive badges per packApproximately 3" x 31/2"Acid-free