Doorbell Making Kit

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$15.00

1 customer review:
5 out of 5 based on 1 customer rating
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Product Description

Learn about electromagnetism and transform a metal screw into a magnetic hammer. Complete an electric circuit with it to construct this handy doorbell. Use it in your room as a cool science gadget. Contents base board, bell, coil cover, L-shaped cover, battery cover, hammer, coil, adjuster holder, hammer holder, washer screw, screws, adjuster, wire with metal ring, long screw and nut, terminal caps and detailed instructions.

1 review for Doorbell Making Kit

  1. 5 out of 5

    :

    This is such a smart toy!

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