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MH622188 stem electric gear blocks Product name: stem electric gear blocks
STEM diy assemble electric gear engineering building blocks set Function: stem electric gear blocks
Improve creativity,build model,develop brain,exercise hands-on skills Feature: stem electric gear blocks
Universal wheels, the vehicles self-steering when encounter obstacles Advantage: stem electric gear blocks
This is a walking blocks, the motor drives the rotation and walking Design: stem electric gear blocks
26 in 1 model, different levels of assemble and challenges Selling point: stem electric gear blocks
Motor drives gear, understand the principle of gear rotation Power: stem electric gear blocks
Built-in 500mAh battery, USB charging Accessories: stem electric gear blocks
OEM/ODM: stem electric gear blocks