School Smart Graph Sheets feature white bond paper ruled into small squares of equal size, making drawing precise charts, graphics, or diagrams quick and easy. Double-sided graphs ensure ample room for practicing equations or shapes for geometry, algebra, and more. Includes 1/2 inch ruling on both sides. Accepts pen and ink media well, and provides clean erase for pencil marks. Paper with 15 lbs basis weight is sold as 500 sheets per ream.