Cover imported first layer of Bengal vegetable tanned leather original color leather, fully handmade, the atmosphere without losing elegance A5 models: 100g kraft paper 440 (front and back), B6 models:, 100g kraft paper 360P, can be 180 degrees spread writing. A5: 21CM*16CM*5CM B6: 19CM*13CM*4CM size (due to all hand-cut, there may be a slight deviation) ===== Shipping: This is a handmade work, and it usually takes us 10 days to make the order. Thank you very much for your patience, please contact me if you have any questions. We will make your order as soon as possible and promise to ship it the first time.