Staedtler 527-00 Electric Erasing Machine, 10 ft. Cord, Hanging Hook, Erasers Electric erasing machine with ten-foot cord and hanging hook weighs just 15 ounces!. Just 15 oz.!. Includes ten-foot cord, hanging hook and two 1/4" diameter eraser strips. Eraser strip refills sold separately. UL and CSA listed.