The calendar challenger is back for 2018 with 365 brand new puzzles, allowing you to challenge yourself and get your brain working every day of the year. Developed by Mensa
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Trustpilot
TrustScore 4.5 | 7,300+ reviews
Rajesh P.
Customer service was outstanding when I had questions about the product.
2 days ago
Ali H.
Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.
