The electrical energy is converted into mechanical energy, and after the circuit is closed, the rotating motion of the motor is converted into the reciprocating swing of the step, so that the "crawler" can crawl on the ground.
Type: STEM toys, DIY kits
Suggested Age: 7 years and up
Batteries: 2 * AA (not included)
Package: PE ziplock bag*
*Some orders are individually packaged in cartons, but this is not guaranteed.
Note: this is a DIY kit, you need to assemble it
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs.