KoaKoa Make your own pencil sharpener
KoaKoa Make your own pencil sharpener
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KoaKoa Make your own pencil sharpener

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€29,90
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€29,90
Regular price
€29,90
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Assemble thirty different elements to make your own pencil crank.

Manipulate and uncover gears at right angles. Understand movement transmission and gear ratios.

Go find an empty jar on which you will attach your pencil sharpener to collect your peelings.

Discover recycling and how to give an object a second life! Recycling instead of throwing away, reducing its ecological footprint: an essential gesture in the 21st century!