Made of environmentally friendly metal material, with a double torque spring, the mouth of the clamp is flat and not easy to deform; the surface PVD plating is effective anti-scratch against oxidation, long-lasting colorful, and not easy to decolorize. Craftsmanship, variety of styles and colors, can be customized according to needs, simple and beautiful atmosphere, suitable for a variety of scenarios, such as clip files, clip packaging, wire storage, creative uses, etc., strong clamping force, and toughness. Exquisite steel does not damage the paper, clip more firmly. Plated baking paint process, showing the simple atmosphere, firm and durable, anti-corrosion, and rust. The product is heat-treated and durable.