This Sketch pad features heavy weight paper which is acid-free, lignin-free, and fade-resistantHeavy weight, white drawing paper70 ctPerforatedSketch & store pocketsPaper is acid-free, lignin-free, and fade-resistantArchival qualityLaminated coverFORMAT:UndatedPAGE SIZE:9" x 12" SIZE:8 3/4" x 11" x 9/16" PERFORATED PAGES:YesBINDING:WireboundSTYLE:Art Pad/Paper