I have 3 different sizes; 9x5 1/2 goes to classes, 8 1/2x8 1/2 sits by my sewing machine and 12x18 is on my ironing board. The large one I got from Quilt in A Day on sale for 1/2 price, the other 2 were gifts. I love and use them all. Agree with Onebyone you want to make sure there is a barrier to protect surface as the steam goes through mat making underneath surface hot and wet, I set on a cutting mat cutting mat for quick press and it started to warp it. Keep checking Quilt In a Day as they have frequent sales on these.