High quality covers have the feel of real leather and give your projects professional appeal. Durable, opaque imitation leather. Rounded corners give a stylish, streamlined image. Unpunched covers can be used with any binding spine, in any binding style that suits your needs. While generally intended for use as back covers, they can be used for front or back covers, based on your taste. Round Corners. Back Cover Color(s): Black; Front Cover Color(s): Black; Size: 11.25 x 8.75; Material(s): Heavyweight Paper Stock.