Strong flexibility, not easy to deform, and can be used repeatedly. The layout is made of PP material, waterproof and easy to wipe, feels comfortable and more sturdy and durable. After repeated tests, the anti-fall effect is obvious. The corners are treated with heat indentation, and the indentation is always on. Fold it many times and use it as it is, with long durability. The classification label is easy to take, and the user-friendly design of the side bar can write the classification name, which is clear at a glance, convenient for reference, and saves worry and effort in document organization. Stainless steel clamps, strong and durable. The hardware clamps are not easy to rust, have strong clamping force, and are not easy to deform. The clamped objects are not easy to fall off. Double strong clamps can clamp data, books and paper. Matte texture process, the surface adopts matte texture process to enhance the anti-slip function of the folder, so that the surface of smooth objects becomes matte and easy to grasp. The arc is round and smooth, not cutting hands, fine workmanship, firm binding, lacquered rivets are very durable, fixed strong clamp is firm and not loose, beautiful and generous.