PP clip is a common clip used to hold paper, documents or other articles. Its name comes from one of its main materials, namely Polypropylene, which is abbreviated as PP. PP clamp is composed of two clamping arms, which are connected by springs or other mechanical devices, so that it can clamp articles and keep them stable. The design of PP clip is simple and practical, and the operation is convenient. The common colors are transparent, white and colored. It is widely used in offices, schools, families and other occasions to organize and sort out documents, papers, newspapers, magazines and so on. The size and shape of PP clips can be changed as required, and some clips are also equipped with labels or marking areas to facilitate users' classification and identification. In a word, PP clip is a common practical tool for fixing and sorting all kinds of paper materials.