⭐️ Carefully selected motors with minimal magnetic force imbalance were used in the creation. ⭐️ Demagnetization was not performed, preserving as much torque as possible. ⭐️ A high-viscosity special contact agent was injected, and the motor was carefully broken in at low voltage. ⭐️ No special maintenance is required after use; simply apply oil to the bearings periodically. ※ If there's a blockage, run the motor at 3V without load to resolve it. ⭐️ Due to the nature of the product, please purchase only if you have sufficient knowledge. ※ The displayed RPM is measured within the first minute of operation and may vary depending on the equipment, so please use it as a reference only. RPM is not guaranteed. ※ The motor can has not been opened. The package has been opened. ※ No claims and no returns are accepted. ● Shipping will be on weekdays only.