Hanayama''s Keyhole Puzzle is a high quality cast metal brain teaser
Discover how to separate these two interlocking pieces and then try to reassemble them!
Hanayama cast metal brain teasers have 6 levels of difficulty and each puzzle is Mensa-rated
Level 4 puzzles are considered challenging by most puzzlers

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 3 inch
Height : 1 inch
Length : 4.7 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 1.6 ounce (View shipping rates and policies)

ASIN : B00TSWNRJ2