It's knot your average puzzle! The original Brainstring has fascinated puzzlers for years. Start by randomly arranging the tabs to create a knot in the middle of the cube. To solve the puzzle, maneuver the tabs so that each side has only one color and the knot is untied.For 1 player ages 7 and up.

Recent Toys Brainstring Brain Teaser: Original Recommended Age: 5-15 Year Recommended Age: 5-15 Year Choking Hazard Toy Contains Marble: No Choking Hazard Small Parts: Yes Choking Hazard Toy Is Small Ball: No Choking Hazard Toy Contains Small Ball: No Choking Hazard: Yes Choking Hazard Toy Is Marble: No Theme/Subject: Fun Choking Hazard Balloon: No