Watercolor Pads feature 140 lb. (300 gsm) cold-press acid-free textured watercolor paper in bright white that works for all wet techniques as well as lifting and scrubbing for students and professionals. Use with watercolor, gouache, acrylic, acrylic ink, pen and ink, pencil and colored pencil. This 100% virgin wood pulp paper is made using Hydro-Power and is FSC Certified. Made in Italy. Available in spiral-bound (with micro-perforations) and glue-bound (fold over).