The Toro 18 inch mechanical aerator has controls similar to a mower for easy operation. It is a self propelled unit with a forward speed of 3 miles per hour. Its powered by a commercial grade Honda engine and can aerate up to 3 inches deep. This push aerator is 29 inches wide and has a working width of 18 inches. It comes with 24 tines and can aerate 0.8 acres an hour. Call Trey Willis at 703 919 5291 for more information on the Toro 18 inch mechanical aerator.