This Stonehenge pad measures 8 by 8 inches and includes 15 sheets of pure white 100 percent cotton paper that is acid-free and acid-free and pH neutral. Designed for students and professionals alike this versatile paper is designed for printmaking, etching, silkscreen, pencil, pastel, watercolor and various other fine art applications. Stonehenge is a high quality, archival paper that is cost efficient. Made in the USA. 250 gsm.