sunflower shower round rubber non-slip jar gripper lid opener graphics and more we’ve all encountered a jar that just doesn’t want to be opened, but that’s about to change with this jar lid opener from graphics and more. made of rubber, with an underside featuring special gripping capabilities, you’ll have the lid off your jar in no time. measures approximately 4.75" (12.1cm) in diameter. comes with the printed design, as shown.