To propose a clip capable of easily and surely fixing poster-like paper or the like to bulletin board or the like.

Out of front and rear opposite lateral plates 3a and 3b bent down from the front and rear opposite lateral edges of a top plate 2, the part of the rear lateral plate 3b located between the right and left opposite lateral parts 4 thereof is made to be a notch 5. A leaf spring 1b is stretched into the notch so that the opposite end parts thereof are fixed to the right and left opposite lateral parts 4 and that the intermediate part thereof is projected in a curve in a direction to either the inside or the outside of the notch, and the portion of the curved projection is formed to be reversible elastically to the inside and the outside of the notch 5.