Train your mind with the Extreme Metal Puzzles. Super tough to unravel, this assortment contains three totally different puzzles: The Skull, Total Eclipse, and Quintus. Designed by world well-known puzzle designers, Oskar van Deventer & Jerry Loo, all three of the puzzles include steel. The Total Eclipse consists of brass and nickel-plated steel, the Quintus Extreme makes use of brass-plated steel, and The Skull makes use of stainless-steel. You know that fixing the puzzles helps train your mind, so these are an effective way to problem your thoughts. Plus, enjoying with puzzles like these encourages different, artistic pondering. Each one provides stunning craftsmanship and a design you received’t need to put down. Overall, on an issue scale of 1 to 10, Total Eclipse is a 9, Quintus Extreme is a ten, and The Skull is a ten.