Box of 100 dustless colored chalk. Colored chalk includes blue, green, orange, red and yellow. 3"L x 3/8" diameter. Non-toxic. Colorations® Dustless Chalk does not contain the following common allergens: Does not contain Latex Does not contain Dairy & Casein Does not contain Egg Does not contain Gluten Does not contain Peanut & Tree Nut Does not contain Soy