The other thing too is that not all mats are created equally. I bought the large fold out sewing table from JoAnn's a while back and I also bought the mat to cover it, about 60in long or more. I was so excited. Then I started having problems cutting with my brand new cutter. I knew my cutter was good, I watched them demo it. I don't know what made me think of it but I put my other mat on top of the new one, no more problems. I tried this a few times. It seems the mat after only using it a few times wasn't self healing like it said. To say the least it no longer gets used except for a protector for the table. Talk about wasted money. It was expensive too.