A5 BAMBOO JOURNAL. The green Bamboo Sketch books are real eye-catchers: on the outside the cover shows bamboo canes, on the inside the paper is made out of 90% bamboo fibres and 10% rag. By using fast growing bamboo, resources are being preserved. The natural white sketch paper is great for sketching and drawing with pencil, charcoal and red chalk. Its unique tooth ensures great colours and contrasts. The Bamboo Sketch books are available in both A4 and A5 portrait format containing 128 pages.