Positive and negative poles are distinguished, the terminal next to the of the motor is the positive pole. Copper wire core provides more stable power output and reduces loss. All-copper coil, good conductivity, reduced loss and good heat dissipation. Strong inner core, stable operation, low noise and longer life. Universal compatibility: Widely used, can be used with various lawn mower models, fascia , etc., Weight: 0.63382900325 pounds, Manufacturer: pofaa