VKPI Scratch and sniff stickers are great as rewards, incentives. Square and circular stickers, lovely fruits and foods with a variety of patterns. 576 Pieces, 24 different sweet scents sheets, 144 designs. The size of each sheet is 7.5″ x 5″, and the sticker size is 1.1″. The scents include fruits, flowers and foods snacks. Non-toxic and safe for use. The fragrance can last for 3-6 months. Suitable for kids ages 4 5 6 7 8.