It has all metal parts. I keep one around just for the chain stitch. I used to use it for deco stitching with cams but have a Pfaff 1222E so...
When you buy bobbins it takes the ones with the white lines on them not the black lines; the black ones won't work. I would make sure it will wind a bobbin before you buy it since the bobbins won't fit on an electric stand alone bobbin winder like the Sidewinder.