Feature There one set in the package as following there are 12 kinds in one set Motor typeSizeVoltageNo load current3V SpeedSupporting gear5 7 motor 19 7 5mm3V30ma19000rpm min1008kxbK10 motor10 8 7mm3V30ma15500rpm min1008x11mm long axis N2015 5 12 10mm 3V300ma31000rpm min1008xN30 Model aircraft motor26 12 10mm3 7V220ma20900rpm min1008xRF 130CH22 8 17 1mm6V300ma30000rpm min1008h020 motor19 18 9 5mm3V70ma11800rpm min1008h130motor 25 20 15mm 3V350ma16500rpm min1012along axis 140 motor25 21mm3V230ma16500rpm min 1012aSRF300 motor24 5 13mm3V20ma4000rpm min1012a310 motor 18 24mm3V20ma4000rpm min1012aSquare hole 180 motor34 20 15mm 6V450ma18000rpm min1012aM20 green bottom cover 10 8 15mm3 7V 120ma22000rpm min1008xPackage included 12 pcs motor set