6 colors of silk thread (dyed 21/24 denier raw silk) The silk thread, including the thread spools, weighs 415 grams in total. There are 4 thread spools, each weighing approximately 90 grams on average, for a total of about 360 grams. I estimate the silk thread itself to be around 55 grams. After you use the silk thread, the thread spools, although old, can also be used for interior decorations and other items (they have scratches, dirt, scuffs, and writing in marker). Thank you.