Variety pack of superSpots Stickers offers a fun, colorful way to reward students. Little, self-adhesive circles are just the right size for Trend's Incentive Pads. Child-pleasing, appealing design includes smiling faces and other cheerful shapes. Each sticker is acid-free, nontoxic, and safe for use on photos. Colorful Sparkle Smiles Stickers are designed for students in first through fifth-grade and ages 6 to 11.