5-1/2" x 5-1/2", 48 Sheets With white high quality paper. The surface erases cleanly and is suited for all kinds of drawing, but best for pencils, pens, chalks, charcoal. Made specially in "lay flat" way for single page drawings or panoramic view. With open type book binding back, natural colored extra hard cardboard front and back cover. Inside paper is Acid free, pH natural, FSC and EU Ecolabel certified.