Crescent - Select - 32x40 - Super White - Crescent Select are conservation grade matboards with a 100% virgin alpha-cellulose surface, core and backing paper. They are Acid-free and lignin-free. These boards have conservation grade surface papers in a wide variety of colors. Colors are fade and bleed resistant so they last as long as your art! At just a slight premium to regular matboards, Crescent Select is a great choice for all artists needing a museum quality board!