(For rebar up to 7/8 inch diameter in most applications). Eliminate the time and mess of lowering a concrete vibrator into a cell containing a rebar and filled with grout. The splashes caused by the withdrawal of the vibrator are slippery, dangerous and time consuming to cleanup. The Rebar ShakerTM simply slipped over the top of the rebar, vibrates and consolidates grout in 5 to 7 seconds. Tremendous savings in man-hours, from filling and refilling cells, clean-up and lost time due to injury from slips and falls are realized through the use of the Rebar ShakerTM. No human errors such as skipping cells and poor vibrating techniques (i.e. not letting vibrator touch the bottom or withdrawing to fast), which result in poor consolidation and a weak bond between the rebar and the grout.