This pad features chlorine- and acid-free sketch paper and is ideal for all dry media. The heavyweight sketch paper has a nice tooth that erases cleanly and is smudge resistant. Microperforated edges allow you to remove finished work easily with no tears or catches. Side-spiral binding , 65 lb. , 100 sheetsDetails:White9" x 12" (22.9cm x 30.5cm)65lb/96gsm100 sheetsSide spiral binding, microperforatedHeavyweight, acid-freeIdeal for dry media