The product is a set of 10 rectangular sublimation slate blanks measuring 7.9 x 6 inches, manufactured by Metallixity. These blanks are made of film with a net weight of 6.374 pounds. The product does not come with any California Prop 65 Warning. These slate blanks are typically used for printing photos and designs using sublimation printers, providing a smooth and high-quality surface for creating personalized items such as phone cases, coasters, and various crafts.