1. Lb is thickness and Gsm is weight of paper
2. Only 100lb/165gsm can be used for watercolour painting
3. 100 pieces in loose form
4. Same as Drawing Block materials
 
White Cartridge A2 - 80lb/135gsm
White Cartridge A2 - 100lb/165gsm
White Cartridge A3 - 80lb/135gsm
White Cartridge A3 - 100lb/165gsm
White Cartridge A4 - 80lb/135gsm
White Cartridge A4 - 100lb/165gsm
 
Only for White Cartridge A5 - 80lb ONLY