Strathmore has been manufacturing watercolor paper for over 60 years to exacting specifications using the highest quality materials. All our watercolor papers are acid free and buffered to neutralize acid compounds absorbed from the atmosphere or formed through natural aging. We offer a complete range of watercolor papers in surfaces to compliment any technique. This economical, student-grade, acid free watercolor paper is best suited for beginning watercolorists or for experimentation of techniques. Acid Free. Size: 9"x12", Sheets: 12, Type: Tape-Bound.