Organize your art markers by cap colors, then make an at-a-glance chart. Discover quickly the value difference from Aqua 121 and Seafoam 122. The chart will speed up your selection every time you reach for a maker. No more searching through the hundreds of markers for the perfect color, only to 'test' the color on scrap paper, realizing you're a shade off, and the random choosing process starts again.You'll never draw or sketch without your chart by your side. Click below for more art tips.