Selling three different IQ puzzles. I will combine shipping on all of them. Please check out the other two that are listed.

Safecracker 40 - Laser Engraved Math Puzzle - Handmade in the USA

Product Description

Challenge for Math Lovers: Align each of the four puzzle wheels so that all 16 columns equal 40

Ideal for Teenagers: The Safecracker 40 is an ideal mid-level difficulty puzzle for ages 12 and up

Laser Engraved Numbers: Numbers are laser engraved, ensuring they will never wear off and no ink to smudge

Handmade in the USA:

Quality Construction: Made from 1/4" and 1/8" thick alder wood for strength and durability. Base wheel measures 4 1/4"