Learn about electromagnetics as you transform a screw into a magnetic striker. Use it to construct a handy doorbell. The Doorbell Making Kit by Kids Lab from Great Gizmos contains a 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. (Doorbell will be about 16.5cm in length. Also required but not provided: 2 x 1.5V AA battery and a small crosshead screwdriver.)


SKU 4893156033680
Brand 4M
Shipping Weight 0.4500kg

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