I bought a huge Alvin mat on line two years ago. It is about 42x60 and fits on my cutting table perfectly. I think I paid around $175 which seems high, but right in line with other mats. Shipping was free. Yes it was stinky at first and I let it sit out on the picnic table in the sun to air out. That flattened it right back out too. I have been shocked at how fabulous cutting is on it. Never leaves threads uncut etc. Also does not dull my Olfa blades. It was one of my best purchases ever. I learned about it on this list. If you google the name it will show the companies which sell it. I'm thinking it was Ideal or something like that. Can't check right now.