uPunch Ribbon for HN4000 Calculating Light Gray Easier to find your replacement ribbon! HN4000 Calculating uPunch machines, time cards, and ribbons have the same gray color for making sure you get the right replacement products. Two colors black and red allow for highlighting early punch ins and late punch outs For use in HN2000/HN4000 time clocks and HN4500/HN6000 bundles. Individually sealed to ensure quality.