Write, color, create – and easily erase! Great for use on Teacher Created Resources Learning Mats, Teacher Created Resources write-on/wipe-off books and charts, and other dry-erase surfaces. Wipes off easily from dry-erase surfaces! Large size (3-7/8" long & 3/8" in diameter) is easy to hold. Includes 9 colorful dry-erase crayons in pink, red, orange, yellow, green, blue, purple, brown, and black. Non-toxic and conforms to ASTM D-4236. Ages 3+