Rhodia Pads are a favorite with architects, designers and scientists. This classic notepad, made in France, has a major cult following! The pads are staple-bound, 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).