One of each color has limited applications. Now I can buy a pack of green expandable pockets but I purchase a pack of pockets in any other color. The yellow ones are the ones I need.
These folders are wonderful for storing larger file subjects. The only reason I gave it a 4 star (instead of 5) rating is that once the file is in the cabinet --loaded with papers--it is somewhat hard to get it out as the expanded file edges get caught on the cabinet when pulling it up. I have to really manipulate the edges to get the file out so it won't tear.