Foldback Clips
Less commonly known as a banker’s clip or binder clip or ”bobby clip?, the foldback clip is a simple device for binding sheets of paper together. It is also sometimes referred to as a “handbag clip” because, when not in use, its clip can be folded up to look like a handbag.
In common use in the modern office. It can hold a few to many sheets of paper and is usually used in place of the paper clip for large volumes of paper.