A transition roll is when we go from making one color to another color. So you may get half of two colors or one color and the rest of the spool is some off mix. OR you may get some random mix of colors all together. So if you don't care about color because you plan on painting it or just don't care at all then this might be a good solution for you. They are still 1kg rolls and still in specification. Just the colors are not consistent or a mix or just completely off . Sorry, no special request or color preferences are accepted. The spool is chosen at random.