A substantial 70lb/114gsm bright white sketch paper with a fine tooth texture has a durable surface that can withstand repeated erasing. These pads feature strong dual loop wire-bound construction and innovative In & Out pages that allow you to easily remove sheets for drawing, reworking, scanning and more. When you're done, simply return the sheet to the pad! Paper Weight: 70lb/114gsm. Surface: Fine Tooth. See how to remove and replace In & Out PAGES in the video below, it's easy!