Tamiya Mini Motor Low Speed Gearbox 4-Speed

This is the Mini Motor Low-Speed Gearbox (4-Speed)
from Tamiya's Educational Building and construction Series.

FEATURES
Type 030 motor features a low electrical energy usage rate and
    does not release electronic sound
Motor specifications: 8400RPM, Voltage: 3.0V
Gearbox features 7 different equipment ratios (71.4:1, 149.9:1, 314.9:1,
    661.2:1) which can be easily changed by altering the final
    equipment accessory position
3mm hex shaft and transmission accessory holes are compatible with
    other Tamiya craft products
2 different transmission accessory positions are readily available
Transparent equipment case to show the internal systems
Pictorial assembly directions

CONSISTS OF:
One Mini Motor Low-Speed Gearbox (4-Speed)

NEEDS:
Assembly
Pastime knife (RMXR6909)

SPECS:
Length: 1.18" (30mm)
Height: .78" (20mm)