This Set has 50 Mini King Cones of Polyester Machine Embroidery thread. There is 1100 yards of Thread on each spool. The thread is 40wt. Each spool is individually shrink wrapped to protect from dust. The colours are the same as provided by Brother / Babylock. The colour name is printed on the spool itself so you do not have to go looking for it on your computer or cheat sheet.