CutterPillar Tempered Glass Mat is a valuable add-on for the Swivel. This replacement mat allows you to swap out the cutting mat for a tempered glass mixed-media mat. The tempered glass in this mat is 20 times harder than regular glass, making it ideal for crafters, artists, designers, and photographers. You can cut, paint, stamp, or glue on it since it's virtually stain-proof! Anything that sticks can be washed or razored off without worrying about scratching the surface, it's impervious to most damage. It is also resistant to heat, so you can iron it! This mat measures approximately 14" and features ruler measurement marks with fractions printed next to them, standard quilting angles, vertical and horizontal rulers, and common squares. *Please note this does not include the Swivel, it is only the mat.