Brain Box (Bookinabox) is an excellent boxed set of the Snake Puzzle and a 240 page book of mental gymnastics. This set is called “The Impossible Cube” but it has been around for many years and was called in many different ways like Serpent Puzzle, Rattler Wooden Puzzle, Dragon Tail Puzzle, etc.
I just wrote a detailed review on this type of puzzle and it can be found here on Amazon as “Snake Cube Solitary Puzzle Game”. As I said, this puzzle has been marketed in several versions and the “Brain Box” is highly recommended. Check out my review and you will also find other versions of this puzzle. You can purchase this puzzle at Amazon.