Come and see our amazing products. This notebook is characterized by the use of stone paper, which is smooth and tough, waterproof and leak-free, and smooth writing. The metal coil is firm and not loose, and the cover PVC material is waterproof, wear-resistant and dirt-resistant. Breaking the traditional notebook writing cognition, you can write notes underwater, which is very suitable for outdoor adventure, diving, and collecting commemorations. With a special pen, you can easily erase the handwriting, and it is called a notebook that cannot be finished. Pls confirm with us about the packing info, stock color and exact production time before placing your order.