The motor adopts waterproof design and related waterproof technology, has a certain anti-corrosion function, and runs normally in the rain. 14-stage 12-slot high-torque motor design CNC machine tool processing steel billet, 6061-T6 aluminum heat sink, secondary oxidation treatment, high-end and fine appearance High-purity copper coils for maximum performance and temperature resistance of 180-200° High-speed ABEC5 ultra-durable imported sealed bearings have low friction, low noise, high precision and long-lasting use. 0.2 Imported ultra-thin silicon steel sheet: excellent performance, high magnetic permeability, high silicon content, good insulation and heat resistance 3.5mm gold-plated connector, 5.0mm output shaft The dynamic balance of the outer rotor is controlled within 10 mg to ensure no abnormal noise, no vibration, and high smooth operation. Colour:black Material:Metal type:800KV/600KV<br><br>Package Contents: 1 x RC Plane Helicopter brushless motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.