Help students stay on track with the Nature Explorers chart seals. Each sticker features whimsical snails in various colors—the perfect accent for incentive charts! This value pack includes 810 chart seals. Available in a variety of colors, our acid-free and lignin-free stickers are safe for student scrapbooking and photo projects and are also the perfect decor addition to any classroom. Make sure to view our other Nature Explorers products to create a cohesive classroom theme.