Sun Joe MJ401E Mow Joe 14-Inch 12 Amp Electric Lawn Mower With Grass Bag The Sun Joe Mow Joe uses a powerful, 12 amp, electric motor to quickly and efficiently mow your lawn, maximum extension cord length is 100 feet Easy push button start; no messy oils or gasoline and no load speed (rpm)is 3500 Three-position height adjustment up to 2-2/5 inches and size of yard is 1/4 acre or less ; Detachable grass catcher for easy disposal of grass clippings Compact design is easy to maneuver and takes up less storage space, rear wheel size is 5.5 inches Hard-top grass catcher detaches easily for convenient disposal, 14 gauge minimum rated extension cord