Features: brand new and high quality Each motor undergoes a strict dynamic balance test before leaving the factory. Adopt imported NMB bearings with long life. Adopt low iron loss silicon steel sheet core. N40UH magnet with temperature resistance of 180 degrees. Adopt temperature-resistant 180 degrees oxygen-free copper wire winding. CNC machined high-quality shell. High-quality temperature-resistant 200 degrees silicone wire leads out. Unique assembly process, good rotor dynamic balance. 27 grams. Specifications: All motors are equipped with heads, not copper plugs/banana heads Maximum power: 150W (30S). 3S lithium battery with APC 6x3 maximum tensile force 430g. 3S lithium battery with 5045 maximum pulling force 350g. Style: Orthodontic, Reverse(optional) Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 x Brushless Motor Quadcopter