These beautiful game mats are designed of top quality material they are constructed with a vivid yellow polyester cloth surface, and dense black open cell sponge rubber base with a non skidbottom that grips the surface with a soft, smoothsurface to help with the longevity of gaming sleeves and cards.* Each game mat measures approximately 23.5″ X 13.5″ X 1/16″ thick. The 1/16″ thin mats are lighter and thinner to allow for a greater flexibility for transportation and storage. These game mats have become a standard throughout the industry.* The blank mats are ideal for making custom team mats, custom artwork, as well as using them for artists signings and many other creative purposes.