.too copic sketch marker 36 piece sketch basic set copic r46/yr68/y19/g19/b18/bv17/e18/100/0/r43/yr65/y08/g14/b16/bv13/e15/c-7/w-7/rv02/yr61/y02/g02/b12/bv11/e11/c-4/w-4/rv00/yr000/y00/g000/b000/bv000/e000/c-1/w-1 a starting set with the basic colors of each system. with a color scheme that combines 12a, 12b, and 12c, it is ideal for those who want to start drawing marker illustrations in earnest, such as idea sketches and color illustrations.