text: Giant MÃ bius strips have been used as conveyor belts that last longer because the entire surface area of the belt gets the same amount of wear , and as continuous-loop recording tapes ( to double the playing time ) .
simplified: Such belts last longer because the entire surface area of the belt gets the same amount of wear . MÃ bius bands have also been used as continuous-loop recording tapes ( to double the playing time ) .