3Add a touch of sunshine to any job or incentive chart with the cheerful color palette of Color Me Bright chart seals These self-adhesive chart seals are acid-free and lignin-free and measure .375" in diameter and each pack includes 810 seals Available in a wide variety of colors and shapes, chart seals are an excellent addition to any teacher's desk Chart seals have assorted colors and designs on each seal Look for coordinating products or designs to create a cohesive, designer classroom theme