A spool of bobbin thread came with my embroidery machine. Accidently used that bobbin in my sewing machine and it did great. Now I buy a spool of white and a spool of black bobbin thread and use it all the time for all sewing. It is thinner and you don't have to wind bobbins all the time. The only time I match colors now is for the free standing lace patterns and for topstitching clothing where it might be seen.