The sheets in the book are made from superior quality, eco-friendly and chlorine free paper, ensuring whiter, brighter, consistent and smoother pages. PORTABLE SIZED - This mini memo pad is a suitable size for carrying. High quality, acid-free paper. NOTEBOOKS FOR ANY USE: These unruled notebooks can be used as travel diaries, travel notebooks, journals, weekly planner, used for writing down ideas, keeping a travelogue, taking notes and so much more. Soft and elastic, it can be used as a nap pillow or wrist cushion. Material: TPU, 80g two-side offset paper. NOTE: 1. Keep away from fire and humidity. 2. Store in the shade.