UDI U839 RC Quadcopter Spare Part U839-10 Anticlockwise Motor Model: U839-10 Suitable for: U839. Color: Silver Dimensions: (0.71 x 0.24)" / (1.8 x 0.6)cm (L x Dia.) Weight: 0.07oz / 2g Package Includes 1 x U839-10 Anticlockwise Motor