SPRINGBOTS: 3-IN-1 SPRING-POWERED MACHIN
Recommended for ages 6 and up.
SKU
THK550038
In stock
$29.99
Build a motorized robot, race car, and countdown timer - all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring - a spiral-shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges.
Weight | 0.900000 |
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Description | Build a motorized robot, race car, and countdown timer - all that run without any batteries or electrical power! The secret behind these fascinating machines is a power source called a mainspring - a spiral-shaped spring that stores up energy when wound up by hand, and then converts that stored energy back into motion when it discharges. |