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. Our intermediate grade, acid free watercolor paper is popular with watercolorists of all levels. This versatile, felt finished paper is ideal for mastering watercolor techniques or finished pieces. Acid Free. Size: 22"x30", Type: Cold-Pressed.