From the manufacturer:
Ideal for sketches and notes, these dot grid pads are a great tool for architects, designers, artists and those who love to write and sketch with a subtle grid. The 80g acid-free, pH neutral paper features a pale violet dot grid at 5mm intervals. It offers great results with scanners and photocopies, and works well for drawing, regular writing and layout and design work. Each pad contains 80 micro-perforated sheets. PEFC certified (sustainable forest management).