Sun Joe iON100V-21LM-CT 21 in. 100V Max Lithium-iON Cordless Self Propelled Lawn Mower, Core Tool (No Battery or Charger)

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Powerful: 1000 watt brushless motor increases battery efficiency, maximizes motor performance, decreases noise vibration, and extends motor life
Self-propelled: the self-propelled drive saves time and energy, moving the unit forward for an effortlessly beautiful lawn