New Generation Spring with special closing process, bolt-fastened at both ends, spring wont fall out anymore. Extra-long and thick strong spring creates solid holding power and high grip capacity, can clip from one piece of very thin paper to a bunch of thick papers. Environmentally friendly iron material, silver color with top plating crafts, simple but practical design to ensure good elasticity, corrosion resistance and extra durability. Hole on handles for hanging- a pegging hole at the top allows you to hang the clip with push-pins on walls, doors, cork board, billboard and anywhere for easy access. Perfect for DIY crafting, best for organizing or displaying your price tags, photos, maps, drawings, papers at shop, home or office. Great for organizing your documents and paperwork: data sorting, office management, test paper classification, even serve as coffee/tea/food bag clips, so that your office, school and home life is efficient and colorful. 50MM specifications: The maximum position of the mouth is 23MM .Material thickness: 0.41MM. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.