These Daler Rowney cartridge pads have a good quality, medium grain, white paper. Each pad has 25 sheets of 150gsmb (90lbs), acid-free paper. Available in five sizes A6, A5, A4, A3 and A2. The smallest A6 size is a pocket sized pad popular with journalists for notetaking.

Daler-Rowney Series A Sketchbook - Spiral Bound