CANSON These books feature a heavy-weight French Montval Cold Press Watercolor paper. This paper is mold-made and performs beautifully with all wet media. The surface withstands scraping, erasing and repeated washes. The microperforated sheets allow for a true size sheet. These 20-sheet books also feature an innovative removal half sheet that contains tips and techniques that can be reinserted and used as a bookmark.Size 9 x 12 Inches - Sheets 20