Try to separate the two S shaped pieces and put them back together again.
Historically this puzzle was called the Loop the Loop puzzle or the Devil’s keys or even just the Double S puzzle. This one has the name “Tunnel of Time” cast into each piece.
No matter what it’s called it’s two symmetrical S shaped pieces will be tricky to take apart and put back together.
The puzzle is made of chromed metal and is packaged in a natural cardboard gift box with clear window front and red display board. A solution is enclosed.
Size of box: 75mm x 115mm x 48mm