Box of 8 Crayola dry erase crayons - good on white or black boards. They are 4" long and colors include red, orange, brown, yellow ,green, blue, purple and black. They have no odor and will not dry out! The crayons have no caps to lose and the box comes with a built-in sharpener. They easily wipe off any dry erase surface. Recommended for children over 36 months. All Crayola art materials are non-toxic.