1, Selection of high quality color PU, leather color gorgeous, clear grain. 2. Creative engraving hole color changing leather material. 3. Same color oil edge process. 4. High quality metal binder, not easy to rust, durable. 5,80 grams of cream-yellow Daolin paper, writing is smooth and smooth. 6. The binder is fixed with rivets for stronger quality. 7. Insert the pen into the binder ring and place the binder as the pen. Material PU leather, Daolin paper packaging weight 0.55kg size A6.18mm5*125mm A5.233mm *170mm B5.270mm *210mm A4.310mm*252mm specifications are different prices, specific questions, please consult customer service