I bought these as a gift for my son that used up his old small set after years of use. He loved these! It had so many colors he'd been looking to buy separately and more on top of that. He loved having all the warm greys that he didn't have and bought separately are expensive just to try out. As many other reviewers mentioned, the plastic trays the markers sit on are useless and thin that if not picked up very carefully pens go everywhere. For the money, these should come with a decent case or tray at the very least. I spent all I had just to get him these pens, so buying some other thing to carry them in just wasn't possible. So to tide him over until he gets himself a real case, he took some thick foam he had and sliced it in strips and slipped it into the box to hold the pens still while upright. He also taped the large flap closed so he just uses it standing up and for now it works for him.