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Mr. Sci Science FactoryLocksmith's Challenge-DIY Transparent Lock



An incredible experience for you to see all the parts of a lock.
Understand more about how a lock works.
After finishing assembling, you could see the way pins moving.
Enjoy the fun and challenge!

Additional Information

Dimension 5 x 8 x 1.5cm
Material Acrylic, Brass, Iron


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