Set of 4 washable chalk crayons. Made in China. Colors are red, white, blue and yellow. Crayons can be used on Imagination Starters products and glass or vinyl. Please do not use on ANY chalkboard without testing first. Chalkboard manufacturing varies greatly and so we cannot guarantee that they will erase on all surfaces. Clean off with baby wipe, wet wash cloth or cleaning spray for stubborn marks. Crayons are washable.