Craighill calls this puzzle an “intriguing mental and physical challenge... difficult to solve, satisfying to hold,… and beautiful to display.” It's made of die-cast brass and stainless steel with a hidden interior cavity that makes a great place for a tiny surprise. If you're not puzzle-inclined, just use it as a really beautiful paperweight for your desk.
This product can expose you to lead, a chemical which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.