I have the Martelli turn table and LOVE it. Tried the green square ones, those were complete duds. Martelli does a red line sale every month where one item from their catalog will be deeply discounted; that is where I got mine. A couple of times a year, the sale is good for anything in their catalog. Their mats are fantastic. Pricey, but so much nicer than the Olfas. It's hard to describe, they feel almost padded when cutting. They can be bent, don't break in the cold (DH dropped a large green one that had been in the car and it cracked) and can be ironed on. I've tried it - it's true.