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Project Genius

True Genius Lock & Key Puzzles

True Genius Lock & Key Puzzles

Regular price $15.99
Regular price Sale price $15.99
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Happy Up's Age Recommendation:

  • 12 Years + / Tweens
  • Teens
  • Young Adults & Grown Ups

8 years & up

Challenge the PhD in your family with a trick lock puzzle!

These brainteasers are harder than they look. Each metal lock puzzle is solved in a completely different way with a range of difficulties.

They make beautiful desk toys or fidgets for teens and adults.

Available in 3 different styles: Grecian Trick Lock, Roman Latch Lifter, and Egyptian Pin Lock, each sold separately.

Assorted styles, we choose for you.

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