Sweet Scents stickers are great as rewards, incentives and collectibles with 94 designs on 30 sheets. Scratch 'em and sniff 'em for a burst of fragrance. Stickers in the Stinky Stickers Variety Pack are acid-free, nontoxic and safe for use on photos. Actual sticker sheets may vary from photo. Stickers are ideal for teaching students in pre-kindergarten to third-grade (ages 4 to 8).