Graphix Aqua Inks are naturally transparent with high lightfastness. They are ideal for watercolor techniques with brush or drawing pen. Even when dried, the ink can be dissolved completely with water. The Starter kit contains one each of six 1/2 ounce glass bottles in lemon, vermilion, magenta, cyan, mint and black colors, and one synthetic No. 4 brush. Shake bottles vigorously before use.