Free sample. 100pages. This notebook uses a hard and comfortable material , which is comfortable to handle, resistant to dirt and water. New design, compact and lightweight, can be easily grasped with one hand. This notebook comes with a pen insert, which is easy to store and can be written at any time. Thickened paper is used inside, writing on both sides, no ink seepage, and binding with thread lock, which is not easy to drop pages. The outside is designed with elastic straps to effectively protect the book from folding. Available in a variety of colors and sizes.