Description
Inventors: Guido Lap & Oskar van Deventer
The popular Brainstring has been turned inside out! Brainstring ‘R’ is just as knotty as the original, but features a movable ball with a 360° spin that will have you on the ropes. Twist, turn, stretch and slide the puzzle in all directions to unravel the tightly wound knot. Once the strings are completely separated, the puzzle is solved – no strings attached.
Ages 14 and up
3.7 inch diameter
Reviews
There are no reviews yet.