Multi-function: Our 140 packs binder clips keeps files bound together preventing papers from slipping or pulling out, use different size paper clamps to manage different thickness files, help to fix and seal some specific things, DIY some useful small tools like phone holder, simple hook and so on.Premium Material: Our paper clips are made of premium sturdy metal clips with a smooth black powder coat finish and nickel plated handles that are strong, sturdy and reusable. Binder clips for paperwork will meet your daily needs.Binder Sizes: 140 pcs binder clips assorted sizes(6 sizes). There are large binder clips, medium binder clips and small binder clips, 5 x 51mm/2", 5 x 41mm/1.6", 5 x 32mm/1.25", 15 x 25 mm/1", 20 x 19mm/0.75", 90 x 15mm/0.6", paper clips assorted sizes can meet your different needs!Application: Our black paper clamps suit for office, home and school daily use, students, teachers,and so on. Our office clips can also be used for food clips, clothes, furniture and outdoor applications.Convenient: Our paper clips office supplies are quickly and temporarily bind stacks of loose papers that are too thick for staplers and paperclips. And these metal office clips are packaged in a reusable plastic container for easy storage.