This Optima Mixed Media Spiral Pad, 250g acid free paper is perfect for all drawing techniques such as pencil, ink, pastel and charcoal, but also ideal for watercolour and acrylic. For use in the studio and on the move.  Size: A4 and A3. Each white page measures 297mm x 210mm and features high quality 250gsm, acid-free cartridge paper. Each lightly textured, natural white sheet is a joy to use for a variety of dry and wet techniques. The high-quality paper is designed for traditional art, mixed media, collage and visual journaling. The Optima Mixed Media paper is perfect for all your drawing techniques such as pencil, pen, ink, pastel and charcoal but is also ideally suited for works in watercolour and acrylic.