Peaceable Kingdom Scratch and Sniff Yucky Smelly Scented Sticker Pack Cool stickers feature scratch and sniff scents for extra special fun Each sticker pack includes two sheets of scented, acid-free, archive quality stickers Peaceable Kingdom sticker packs always feature artwork that is bright, colorful, age appropriate and fun Printed with vegetable based inks on recycled papers and packaged frustration free - naturally! For ages 3 years and over