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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6
2 x HB2*5MM Screw
quietness and durability
2 x Heating Cylinder(Spare 1)
note: this item has already updated from Jan 18th
High Quality: Chassis made of high quality metal materials features impact resistance and better stability
Motor Principle Description Instrument DIY Toy Physical Experiment Teaching Equipment for Student RC Car_HSP 2 x HB2*5MM ScrewMotor Principle Description Instrument DIY Toy Physical Experiment Teaching Equipment for Student Features: . Educational Significance: Using the products that are actually visible to explain the working principle of the motor can improve the child's ability to use the brain, cultivate children's curiosity about science, and regard science as a child's interest and hobby, so as to prevent children from indulging in electronic products . Product
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