Toro 51664 Oscillating Nozzle Kit Time-saver - provides a wider clearing path reducing the number Automatic air movement can reduce wrist fatigue Easily attaches and upgrades most Toro Blower/vacuums Fit These Toro electric blower/vacuums: models 51574, 51591, 51599, 51602, 51609, 51617, 51618, and 51619 and comes standard on 51621