The product is a set of 100 flexible magnetic sheets measuring 5x7 inches, manufactured by Marietta Magnetics in the USA. These self-adhesive magnetic sheets are ideal for various printing and graphic arts projects, particularly in sign making. The flexible nature of the sheets allows for easy bending and shaping to create customized designs, while the adhesive backing ensures secure attachment to surfaces. Perfect for businesses and individuals in need of high-quality magnetic sheet materials for their projects.