Challenge your mind with a unique metal brain teaser puzzle by Hanayama. The 40th Anniversary Cast Diamond - Gold Limited Edition (Crux) is a challenging and intriguing 3D metal puzzle that will put your problem solving skills to the test.
This diamond consists of two pieces. Taking them apart is easy, but putting them back together takes some thought. Keep this simple yet elegant puzzle with you at all times.
Designed by American designer Scott Elliott.