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Make A Handcrank Doorbell

$35.00

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Brand: Koa Koa Description: This DIY kit will allow you to build a beautiful doorbell for your room. While building it, you will discover gear trains and basic mechanical principles like...

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Brand: Koa Koa

Description: This DIY kit will allow you to build a beautiful doorbell for your room. While building it, you will discover gear trains and basic mechanical principles like the friction effect.

Includes: Three large wooden gears, a large board and small parts to assemble. There are also screws and nuts: nuts, screws, rings, washers, wing nuts.

Suggested Ages: 6 and up.

 

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Make A Handcrank Doorbell

$35.00