The Alvin black mats I have are 24 x36. I bought two at the same time when I found them at Tuesday Morning store for $19.99 each. Retail price was marked I think about $65 each. I didn't need two mats then but sure glad I bought them. I take one to retreats for the general cutting table. It has taken a lot of use. I use a lot of different size mats on top of my big one so none gets worn that much. Buy low and use high. LOL