U-shaped shut-off clips

An open-mouthed container closed by a clip having an over-all uniform cross-sectional area and comprising opposed limbs interconnected by a web at transitory points, said limbs having a notch cut on the outside of each limb as a pliability-prone segment therein, aiding the bending of each limb toward the other limb away from its respective notch, the clip in its open state being U-shaped, whereby the enclosed container is remote from the notches so as not to be damaged thereby.