5V 90RPM Full metal gear motor GA12-N20 waterproof motor 3V to 9V
The plastic head on the motor shaft can be easily taken out.
The output shaft and back of the motor are waterproof and protected, so I believe that most of the disassembled motors are in good condition.
Output shaft length: 9.5 MM (the shaft length of the long shaft motor is 12MM)
Output shaft diameter: 3 MM (2.45MM with flat position)
weight is 14g
Voltage: DC 5V
Speed: 90rpm