Manager's clip is composed of a leather case and a notebook. The leather case is usually made of dermis, anti-dermis, scalp, second skin and other materials. There are checkers on them for business cards, bank cards, etc. Some also have calculators. Notepad is usually 20-50 pages of A4/A5 specifications...
With the development of society and the deepening of demand, the manager's clip is no longer the exclusive use of managers; now, the manager's clip has become more and more popular, and it has become the business office supplies for ordinary white-collar workers, from government officials, business owners to managers at the middle and grass-roots level, which is a necessary commodity for business people.