What is this product? Goldwell Color Applicator Bottle lets you accurately measure out the amount of hair color and developer to mix. Apply the hair color straight onto your hair from this special bottle. Included is a brush top to more precisely apply the hair color onto your hair with its bristles. More info: For Measuring & Applying Hair Color From the Goldwell Hair care Experts For All Hair Types & Hair Needs Directions: Combines easy application with the most accurate results. Lotion and color mass can be measured accurately with the cylinder and then directly applied out of the bowl. Topchic measuring tools are perfectly aligned with the Depot System. The unique Depot System and its accessories ensure that you can offer the best safe and accurate color application. The Depot System features accurate clean measuring that is easy and economical to work with. The complete dispensing of color due to Goldwell s innovative Piston-Can design reduces waste. The dispensing system ensures ideal creamy consistency.