About 20 years ago I got a cutting mat on a turn table at Lee Wards (anyone remember Lee Wards?). did not quilt, and wasn't sure what it was used for, but I'm not one to turn down a good deal. Now that I'm quilting, I've looked at the other ones on the market and the one I purchsed on impulse so many years ago is so much heavier & sturdier. I can't imagine using a twister tool without it!