One 4 sheet package of Space Stickers. Each sheet measures 4.5 x 6 inches and has 12 stickers. Blast your treat bags and invitations into orbit with these colorful Space Stickers. Use them to decorate and seal envelopes, decorate scrapbook pages, and slip them into treat bags for your guests to take home. kids love to trade and collect stickers. Be sure to have a few sheets of Space Stickers on hand as party game prizes, too!