For floss organization, designed for cotton floss from any vendor, but with the wrapped skeins in mind.
It's easy! Pull out the skein from the wrapper. Cut the wrapper (for DMC) in half and slide onto the slot. No need to write the color/number on a bobbin or lose track of your colors due to stickers that come off easily. (NOTE: depending on the manufacturing process by the thread vendor, it might be necessary to cut the wrapper and secure with a small piece of tape. The wrappers are assembled by machine and there is some "variety" in the width)