Appr. 19.68 x 9.8 x 0.1 inches. It has various mixing sections for your different media as well as an A4 matte white non-slip making space ideal for showcasing the true colours of your work. This Multimedia Mat is ideal for all your making needs, not only is it suitable to use with all your Sizzix Effectz, Craft Heat Tool and Craft Glue Gun, you can also change the orientation to either portrait or landscape to suit your craft project. With a stylish and clean design, this Mat fits easily into any space, boasting a band to roll up and neatly store your Mat once finished.