Abstract: A plastic cover for a container including a central cover plate having a peripheral flange in a U-shaped cross-section having outer and inner arms connected by a joining portion, the inner arm being integral with the central cover plate, the peripheral flange adapted to snap onto a complementary rim of the mouth of a container, the joining portion of the peripheral flange including a slot around substantially the entire periphery of the cover and defining two opposite lips; a plurality of integral tab-spots spaced around the length of the slit and connecting the two lips; a gripping tab integral with the inner arm; and hinge segments integral with the two lips at locations on the cover substantially opposite the gripping tab.