I have an 18" Innova made by ABM International in Houston, Texas. It came with a fabulous frame that I was able to put together by myself. It it strong enough that I can sit on the table on the back of it when I am frogging a quilt (like to remove stitches from the back side unless it is just a few inches, less chance of messing up the front of a quilt). I really like that it has a dead bar so my quilting area is always flat and I don't have to constantly move my take-up bar as my quilt grows on there as I quilt. Love the Pro-Frame (and my Innova)!!!