Youva Soft Bound Long book, A4 Size (21 cm x 29.7 cm) is available in unruled (plain). It has brighter inner pages and offers a smooth writing experience. This range of refreshing cover designs will make you feel special! These long books are made from acid-free paper making them extremely safe for students. The pulp is ECF (Elemental Chlorine Free) bleached, which reduces toxic effluents that harm environment. Paper used in this book is made from wood fibres sourced from sustainable sources like captive plantations or farm forestry, which means that no rainforests were damaged during its making.