"This is the second of 'ring' puzzles. The five separate rings can be taken apart and put back together. This version has been changed a bit from the original made by Connecticut’s Jose Grant. This puzzle has five rings, like the Olympic rings that stand the test of time. That is the basic concept behind this puzzle. This type of ring puzzle goes back at least as far as the 15th century, and is now remade with today’s puzzle crafting knowledge. Give it a go."
-Nob Yoshigahara, 2004

Hanayama is known worldwide for challenging puzzles and quality manufacturing. Can you take the pieces apart, then put them back together again? Hanayama cast metal brain teasers have 6 levels of difficulty, and each puzzle is Mensa-rated. Level 5 puzzles are considered difficult by most puzzlers.