Don't do what I did and not take inventory of the feet before buying more. I bought a 37 for the quarter inch and then went home and discovered I had one. I had completed a few blanket stich appliques before I discovered I had an applique stich foot. Make sure you know what you already have before purchasing. I use my 1/4 inch foot the most, but I am interested in one with a guide, now that you have mentioned it.