My first serger back in the 80's. Still have it because I know no one would want it as it was when sergers first came on the market for home sewers. I had a love hate relationship with it. Kept it threaded always in white because it was so hard to thread. When I got second serger I kept it threaded in black. The new self threading sergers look inticing, but not sure I want ot invest yet because I never really serge anything any more.