Selected ABS material, good environmental performance, non-toxic and tasteless, will not produce unpleasant or pungent taste, and has corrosion resistance, good electrical isolation performance. Made of environmentally friendly metal material, double torque spring, the mouth of the clamp is flat and not easy to deform, the surface of the PVD plating layer is effective anti-scratch against oxidation, long-lasting color is bright, not easy to decolorize. Wide range of uses, such as: study office book clip, single clip, ticket clip, food sealing clip, daily storage clip, etc.. Round handle, feel comfortable. Clip opening is flat without damaging the paper, can be customized logo according to customer requirements.