The 755 Direct Current motor seamless 21V compatibility with cordless lawns mowers, high torques and stable through its all copper coils and precisions molded construction for efficient grass cutting Crafted with a metal housing, copper cores, and integrated cooling fan, this brushless motor ensures optimal heat dissipation, minimal current draw, and extended durability in demanding conditions This direct fit replacement motor combines powerful 755 series engineering with universally voltages adaptability, ensuring quick installation and immediate restoration for various cordless grass trimmers and mowers Designed for DIYer enthusiasts and professional landscapers seeking 21V brushless motor replacement to restores cutting efficiency in aging cordless lawns care equipment Tackle overgrown and hard to reach edges with the extended reach long shaft design, engineered to reduce operators fatigue during prolonged yard maintenance, Manufacturer: HZBB