| The Brainstring Advanced Brainteaser Puzzle is an exciting way to sharpen your mind and hone in on your mental skills. This game requires moving the differently colored rubber tips in order to undo the knot inside and get solid colors on every side. Perfect as a travel game, you can sharpen your critical thinking skills with this improved version of the original Brainstring game. This game includes more colored strings and sides, making it much more of a challenging experience. Great as a gift for kids, this colorful string puzzle is great for use by any age group. | Number of pieces: | – |
