Interesting Puzzle Box The Xbox puzzle. This guy reviews puzzles and this is one of coolest, most complex I’ve seen him solve so far. Facebook Prev Article Next Article Machinery Checkout these cool gadgets... Related Posts This Crazy Shape-Shifting PC Is the Gaming Rig Optimus Prime Would Use Flesh-Detecting Saw Instantly Retracts the Blade to Prevent Injury The SoundTank Will Blow Your Ears Off Tungsten Carbide Friction Drills Machine prints metal midair 3D Cold Spray Repairs Any Metal Component to Its Former Glory