Joe those cams fit most Taiwan made Dressmaker machines. I'm not saying they won't fit any Japanese machines, I'm just saying it's been my experience that's what they fit. It's the same set I have for my Dressmaker, S4000, made in Taiwan. They also fit the S2000, S2400 and several other Taiwan made Dressmakers. The cams themselves come in white, grey, blue and maybe more colors. The case can be different colors too, but it's always that same shape.
Cari