I bought one from Quilt in a Day when it was 1/2 off, it is 18x12 and 1/2" thick, if I remember correctly it was $25.00. I love it, you do have to be careful with surface you use on as heat and steam will penetrate through the mat but I usually use without steam on or with on lowest setting. If using steam it does have "wet wool" odor that some people don't like, it doesn't bother me. It really does make a difference in pressing.