Wilton colour is made to produce deeper, richer colour by adding just a small amount. The concentrated gel formula helps you achieve the exact shade you want without watering down your icing. You'll find a rainbow of colours, ready to blend together for creating you own custom shades. Certified Kosher. This set contains: Ivory, Golden Yellow, Pink, Red-Red, Violet, Royal Blue, Leaf Green and Black. Each bottle is 1 oz. (approx 28.35g) x 8 *Note: Large amounts of Red-Red, Christmas Red, and Black may affect icing taste. Use No-Taste Red for large areas of red on a cake. When using Black, start with chocolate icing to limit the amount of colour needed.