IDEA is natural white, medium grain drawing and sketching paper, made from high quality cellulose. It is acid-free and pH-neutral for good preservation over time. Excellent erasure. Slightly roughened, it is ideal for rapid sketching with pencil, charcoal, sanguine, pastels, graphite, chalk. The rigid support makes the pads solid, sturdy and practical to carry around. Designed for art students and amateurs. MUSA is a family owned company in Milan, Italy.