Rhodia #18 Top Staplebound A4 Notepads are made of 80 g acid-free pH neutral paper, are micro-perforated on top for easy and clean tearing. The stiff back cover provides the support required, and the staples do not appear on back. Each pad contains 80 sheets. Note: The grid size for the graph paper, is 25 squares per square inch (quadrille 5/5 mm square). The line spacing for ruled paper is 8mm (5/16 inch). 8.25 x 11.75 inches (21 x 29.7 cm) Top Staplebound 160 pages (80 sheets) 80 g, Extra White Paper Micro-perforated Material- paper made from sustainable forestsMade In- FranceSize- 8.25 x 11.75 inches (21 x 29.7 cm)