Titan is a simple-looking, yet highly challenging take-apart puzzle. The first design by Felix Ure, it's widely regarded as being both incredibly difficult and very satisfying to solve. The goal is to open the sphere but to do so you must defeat the mechanism which keeps the two spheres together.
Machined from solid brass, Titan measures 2 inches (50mm) in diameter and weighs 515g or approximately one lb. The brass is left unfinished, leaving it to slowly patinate and darken with use. Difficulty: 9/10.
Puzzle Mad wrote an excellent blog post that included this brass puzzle.
A blog review by Mr. Puzzle can be found here (WARNING: Blog contains solution spoilers)
Handling Metal Puzzles
I bought this for a co-worker who loves puzzles, and since he lives on a boat and sails wood was not an option. He is in love wit this simple little sphere and is still working on getting it open! Recommend 100% as a gift for or addition to someone's puzzle collection.
This is a lot of fun... even when you know the solution, it's still a joy!
purchased as a gift, recipient loves it still working on it