UGEARS Book of Secrets Mechanical Puzzle

by UGEARS

★ Best for: Puzzle lovers

Ugears lists this as a mechanical 3D puzzle in the shape of a book with hidden workings.

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Why we recommend it

Mechanical models like this turn a crank, cam or gear train into visible motion, the same building blocks used in robot joints and grippers. Ugears lists this as a mechanical 3D puzzle in the shape of a book with hidden workings. Check the listing for the exact piece count and build time before you choose.

At a glance

Type	Mechanical puzzle
Brand	UGEARS (glue-free assembly)

UGEARS Book of Secrets Mechanical Puzzle

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