What makes the Ulti-Mat different from other mouse pads on the market is its Teflon coating. The pad itself is a 1.25mm steel plate which is coated on its top with Dupont's Teflon material. This coating makes the pad slick, super smooth, scratch-resistant, and durable. The total size of the mouse pad is 300mm x 250mm x 3.25mm. The 1.25mm steel plate is very stiff and does not have the flimsy feel of plastic or the lightness of aluminum. If you move the pad often ro attend LAN parties this could be a very good quality as the Ulti-Mat appears to be practically bomb-proof.