Turning Frog Kit
Model: 21-882
T his is an interesting robot kit. When it detects sounds, it will move and repeat the following steps sequentially: Start (move forward), Stop, Left Turn, Stop, Right Turn, Stop. 
Features:
Two sets of gear motors (unassembled
Power Source:
Mechanical: Two "AA" batteries (not included)
Electronic: 9V battery (not included) |
Hexapod Monster Kit
Model: 21-883
The Hexapod Monster is a robot that uses an infrared emitting diode for its eyes, and moves by its six legs. It turns left when it detects obstacles, and keeps moving forward if there is no shade in front of the sensor.

Features:
Uses an infrared emitting diode as its sensor
Two sets of gear motors (unassembled)
Power Source:
Mechanical: Two "AA" batteries (not included)
Electronic: 9V battery (not included)
|
2-in-1 Gearbox
(unassembled)
Model: 21-130
We provide the motor, two sets of gears, metal shafts, gearbox, and other accessories in this kit. Use a different gear setting and you will have a different speed (see the table below for details).

Gear Set 1:
|
Gear Ratio |
Gear |
Teeth |
I.D. |
|
1:60 |
Pinion Gear |
10T |
1.9mm |
| Face Gear |
36T/14T |
2.05mm |
| Double Spur Gear |
36T/14T |
3.05mm |
| Double Spur Gear |
36T/14T |
2.05mm |
| Spur Gear |
36T/0T |
2.9mm |
| Reduction RPM |
41.6 |
Gear Set 2:
|
Gear Ratio |
Gear |
Teeth |
I.D. |
|
1:288 |
Pinion Gear |
8T |
1.9mm |
| Face Gear |
36T/10T |
2.05mm |
| Double Spur Gear |
40T/10T |
3.05mm |
| Double Spur Gear |
40T/10T |
2.05mm |
| Spur Gear |
40T/0T |
2.9mm |
| Reduction RPM |
41.6 |
|