Canford Card Stock Sheets from Daler-Rowney are acid- and lignin-free. Canford Card Stock sheets are smooth, easy to cut and fold to a sharp crease. Great for model-making, paper sculpture, origami and memory books. This versatile paper works well with pastels, pencil, felt tip markers and laser and ink printers. The stiff 140 lb. cardstock sheets are of high quality and feature rich color and texture. Availble in sizes 20.5" x 30.5" and 8.5" x 11".