The protective project mat from artesprix is made of 100% virgin silicone which means it was specifically designed for sublimation projects.the perfect partner to your craft iron, dry iron, or home iron, it will protect your work surface or table top from heat during the transfer process.and because it is made of 100% silicone, the protective project mat will capture any dye during the transfer of your design if any gaseous color tries to escape.the silicone characteristics not only draw in the gaseous color, but it will be infused to the project mat so it won't show up on your next project once you start adding heat again.this package contains one 9x9 inch protective project mat.