Wilton Primary Icing Colors, 4-Piece - Gel Icing Colors Highly concentrated gel icing color is great for tinting cake batter, buttercream or royal icing and can also be used to color Easter eggs Color: Yellow, red, green and blue 1.2 fl. oz. (34 ml) Made in a facility that processes peanuts, tree nuts, fish, shellfish, milk, soy and wheat products Made in the USA