Note: Our level rating system is different than Hanayama's. Hanayama's level 1 is equivalent to our level 5.... level 6 is equivalent to our level 10.
This is the second of the 'ring' puzzles. The five separate rings can be taken apart and put back together. This version has been changed a bit from the original and is made by Connecticut's Jose Grant. This type of ring puzzle goes back at least as far as the 15th century, and is now remade with modern technology. Give it a go.