This is an awesome set of markers! The colors are vibrant and bold! Each marker has a twin tip design, on one end is a 4.1mm bullet tip and the other end is a 4.7mm chisel tip. So technically you are really getting 200 different markers. The markers come in a great sturdy case to keep them all organized. They are organized by color so you have all the shades of a color in the same vicinity. There is literally every shade of color you could imagine. The ink dries quickly and does not smudge. Each end of the markers are labeled whether it is fine point or chisel point and the caps can go on either end. They are water-based, non-toxic, acid-free and environmentally friendly.