Abstract: A clothespin made of plastic as one unit, having two opposite pin plates, an elastic bridge formed between intermediate portions of the pin plates, an elastic plate respectively extending from a bottom end of each pin plate and bending inward, one elastic plates having a bending stopper formed at the end and two projections extending up and under near the end stopper, the elastic plate with the stopper being pressed upward to let the top of the other elastic plate push and support the former elastic plate so as to keep both of them in that position and to be compressed by the lower portions of the pin plates to open the upper portions for pinching clothes between them.