Tamiya Double Gear Box 4-Speed

Put Together a Double Transmission (Left/Right Independent 4 Speed) with this
Educational Building And Construction Kit from the Tamiya GeniuSeries
Appropriate for Ages 10 & Older.

FEATURES:
Appropriate for usage with remote regulated robots.
Left/right independent style implies you can set different gear
    ratios for either side. This set can be assembled for 1 of 4
    different gear ratios: 12.7: 1, 38.2:1, 114.7:1, 344.2:1
Hexagonal shaft.
Motor cover and crank arm.
Durably formed transmission case, equipments and pinion gears.
FA-130 type motor included with a torque of 3V.
Detailed assembly guide.

INCLUDES:
(1) Double Gear Box

REQUIRES:
Assembly
Screwdriver
Hobby Knife (RMXR6909)