SODIAL(R) HJ 450 4-axis 450 F Frame Airframe Flame Wheel Strong Smooth KK MK MWC Quadcopter Red+White+Black Manufactured by Advanced Engineering Materials, super strong and glatt. High quality and strong ability of anti-fall, low maintenance costs. Compact design with a small number of components, you can mount it by youself quickly and easily. Suitable for beginners and older players. Excellent Quadcopter products.