My Horizon sewing machine gave me an extra 3 inches to quilt on my frame. But, my frame was not as wide as my machine. while I could make it work, I decided to take the plunge and get the extension for my frame. This gives me my extra length. But, you it makes me wonder about getting a longer arm. Ah well, I'll live with this one. It works fine for me. I'm not in the machine quilting business so I'm not in a big hurry. But, my quilts are like my children and I've yet to hire them out for the final process, the machine quilting.