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