Mona, I have a "saddle stool" that I got at the quilt show where I bought my sit down longarm. I just love it and am thinking of getting another one for my regular sewing machine too. It's so comfortable, like sitting in a softly cushioned saddle. No back, but you don't need one because it sits you very upright. You can see it in the foreground of this picture I took of my longarm setup. Lots of machine dealers sell these, or you can find them online... just search "saddle stool". They adjust up and down too, and have rollers.
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