Rhodia Reverse Book features a unique square form that gives you the versatility of top spiral or side spiral. Great for mapping out projects and taking notes. Make your notes more effective with GRID paper! These versatile pads contain 80 sheets of superfine vellum paper 80g acid-free, exceptionally smooth, pH neutral paper that is micro-perforated at top for clean and easy removal. The stiff back cover makes writing or sketching easy and portable. Size: 8.25" x 8.25". Color: Black