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Challenge the PhD in your family with a challenging metal puzzle! We love these brainteasers as smart stocking stuffers. Rotate the metal dials to unlock and separate the pieces, a challenge inspired by the Roman clepsydra, a clock that measured time through a steady flow of water. With a difficulty rating of 4/5, the Roman Water Clock offers an engaging challenge for ages 8 and up. Can you solve the mystery and unlock its secrets? From Project Genius Inc, for ages 8+ yrs.
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🇺🇸 Ship from USA · On Agora since 2025
$14.99