4Pcs 7mm*16mm DC 3.7V 45000RPM High Speed Mini Coreless DC Motor DIY Helicopter

Specification Product package: 4 716 hollow cups 2 55MIM red positive paste 2 55MM red reverse paddles Hollow cup specifications: 7*16.5MM Output shaft: 1MM Output shaft length: about 4-5MM Voltage: 3.7V No-load speed: about 45000RPM (the actual speed may be high or low) No-load current: about 60-150MA Dimensions: 7*16 (mm) Line color: motor tail line black and white line red and blue line random! Packing list: 4*716 hollow cup 2*55MIM red paste 2*55MM red reverse propeller