The product descriptions include the approximate page count (80 g/m²) along with two cover sheets. The pages can be fully flipped over, making it easier to write on or copy individual pages. There are 14 standard sizes for binding from 2 to 450 pages - you can efficiently bind almost any document yourself without having to send anything out. Precise DIN A4 format, exact hole spacing: This ensures that the pages are perfectly aligned, giving you an optimal result. Compatible with all CombBind® systems. Available in many different colors.