Hehe I love how smooth and vibrant their colors are. I got both the 72 and 120 set because I've used up all the ones in the 72 haha. Have fun with them, cause I sure did. I've found that the white can be used as a blender (press hard over other colors) to create smooth, non-grainy, color layers if you wish. I do that all the time. Course, instead of using up the white pencil, I've gone ahead and gotten the art sticks too, which make filling in large areas with color a lot easier and faster. I mostly use the white in that for blending.