3 years & up. No cups, no brushes, just twist off the top and design with dots! The rainbow set includes red, orange, yellow, green, blue and purple. Non-toxic colors in no spill, no splash bottles. Give children a blank piece of paper and let them create expressive art, develop hand eye coordination and color recogiition. Set of 6 bottles, 2 1/2 oz. each. Made in the USA.