You just can't wait to get your hands on this puzzle because it's so intriguing, and once you start arranging and rearranging - you're addicted! Brightly colored tabs protrude like little spikes all over the outside of a transparent ball. A stretchy string is attached from one tab to another through the center of the ball. The object of this puzzle is simple - start by randomly arranging colored tabs to form a knot in the attached stretchy strings at the middle of the transparent ball. Then, unknot the strings by moving the tabs - a challenging task, because the strings are tucked inside the ball! This puzzle is loads of fun, a great conversation piece, an interesting coffee table adornment, and best of all has no pieces to lose as it is a self-contained puzzle.