Round hole manual punching machine:

Sharp metal cutter head, punched flat, no burrs. 10 holes can be punched at a time, and a maximum of 10 sheets of paper can be punched at a time. It is more practical to not pick the material, and can punch photo paper/kraft paper/leather paper/PVC cover and other materials. With the binder strip, you can easily organize documents into a book, suitable for A4/A5/B5 and other papers.