One of the key features of the DIY inner page storage envelope notebook is its ability to store a variety of materials. Whether you need to keep track of important documents, store , or organize your art supplies, this notebook has you covered. Its compact size and triangular flap design make it easy to use and carry around, while its ability to be used with page shells adds even more functionality. Features -Color:Black -Material:Paper -Size:10.00X7.00X0.01cm/3.93X2.75X0.00in -Multiple compartments for easy organization: this product features multiple compartments that allow for easy organization of various items. -Triangular flap design for easy access to stored materials: the triangular flap design of this product ensures convenient access to the stored materials. -Can be used with page shells for functionality: this product is compatible with m5 page shells, which enhances its functionality. -Compact size for easy portability: the compact size of this product makes it easy to carry and transport. -Perfect for students, professionals, and anyone who wants to stay organized: this product is suitable for students, professionals, and individuals who organization and want to keep their belongings in order. Package list: 20 x Envelops