By cons, beware, the pens are not individually protected and therefore must be used 20 before they dry.
So rather reserved to large consumers.
The downside, which removes the 5th star: before, one could easily buy refills when a color was out of ink. Now we do not find more or the cost of refills exceeds the pen, so it becomes a disposable pen. It is not very environmentally friendly and if consumers are willing to make efforts, industry should help us, especially BIC dear to my heart.