Tank car science technology children DIY manual bag invention experimental toy model for primary and secondary school students
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Description
It is composed of tank, carriage, battery, driving belt, pulley, driving mechanism.
After the power is turned on, the power wheels on both sides of the deceleration motor output power and drive the front and rear wheels to rotate through the conveyor belt, so as to drive the tank forward.
Ingenious product design and exquisite parts can develop children's hands and brains.
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Product information Product packaging: opp bag Package size: 14 x 20 x 5cm Net weight: 115g Package size: 13 x 10.5 x 8cm
