Internal construction: 1 x solar charging calculator. 1 x tablet / mobile phone stand (folds flat with Velcro fastening). 10 x transparent A4 loose leaf document wallets. 2 x Orgelanalog storage compartments (A4 paper), tablets. 3 x rubber rings (different widths, rubber band can hold items in place to prevent slipping or sliding around). 5 x card slots (includes a transparent window). 1 x A4 notepad (25 pages croed on one side). 1 x 4-hole metal binder. 1 x clip folder. 2 x pen position. External construction. Size:25 x 34 x 4 cm. The foldable magnetic grip ring is durable. When not in use, the handle ring can be folded to save space. The black PU leather feels smooth, waterproof, dustproof, dirt and scratch resistant, protects your documents and items in rain, snow and sand and is easy to clean. The appearance is simple and generous, it is lightweight, can be used at work, busine trip and meeting, it is suitable for working men of all ages and ideal for personal use and as gifts. Package contents: 1 x writing case. 1 x calculator. 1 x notepad. 10 x transparent document pockets.