This clip is a dual-adjustment clip for teaching

This clip is a dual-adjustment clip for teaching. But its front end is still a fixed style, three-jaw clamp or 4-jaw clamp, or traditional two-jaw clamp, which can be made of rubber sheath or pure metal.

This clip is a dual-adjustment clip for teaching-MasterLi, Китайская фабрика, поставщик, производитель