STIHL RMA 510 V 21 in. 36 V Battery Self Propelled Lawn Mower Tool Only Flooring Accessories the M12 1 4 in the M12 1 4 in making installation quick and easy 2000731 Replacement Part SKUs Product Video 1 2g3e1d Brand Name STIHL Local SKU Available Stores 00055 Local SKU Store SKUs 724181 7007841 7007841D 0088666186793 338510 RMA51 Blade Length 18 inch CARB Compliant yes Depth 5 inch Front Wheel Size 5 inch Height 25 inch Maximum Cutting Height 3 36 V Battery Self Propelled Feature 10 Text Feature 1 Text Self propelled with variable speed drive a squee Feature 2 Text Brushless electric motor with ECO mode the motor Feature 3 Text Zero or low exhaust emissions Feature 4 Text Mower can be stowed in three positions: folded or Feature 5 Text Locking key key prevents accidental starting of Feature 6 Text No gradual drop in power