I didn't realize the colors listed were not what I received. I just went to an embroidery class - and evidently left three spools of thread. I tried to figure out which ones I left behind, by looking at this list. Impossible since I didn't get what was listed. 12 of the 36 spools are different than what was advertised!!! 33% wrong!! Losing interest in Massdrop. I will certainly share this with the friends I suggested check out Massdrop.