Copic Marker-senseBook Red Rubber. Perfect for note keeping, journaling, drawing, and so much more. The Sense book's inviting warm color and soft genuine leather were designed especially to connect you to the task at hand. This package contains one 6x4 inch red rubber senseBook with 135 numbered pages, sixteen perforated/removable pages and seven index pages. Comes in ruled lines, square lines and blank pages. Each sold separately. Acid free. Imported.