<ul><li>Challenge for Math Lovers: Align each of the four puzzle wheels so that all 16 columns equal 40</li><li>Ideal for Teenagers: The Safecracker 40 is an ideal mid-level difficulty puzzle for ages 12 and up</li><li>Laser Engraved Numbers: Numbers are laser engraved, ensuring they will never wear off and no ink to smudge</li><li>Handmade in the USA: Every Safecracker 40 is cut on our laser machines and assembled by hand in our shop in Hudson, FL</li><li>Quality Construction: Made from alder and maple. Base wheel measures 4.4"</li></ul><br><br>

Creative Crafthouse Safecracker 40 - Laser Engraved Math Puzzle for Teens - Handmade in the USA