Can you twist your way into untangling the strings? A new twist on the original Brainstring featuring a 360° rotating ball. This brainteaser from Recent Toys will keep you entertained for hours! The object of Brianstring R is simply to untangle the knot and separate he different color strings. Players solve this challenge buy twisting the rotating ball in all directions! Once all ths strings are separated the puzzle is solved! With 8 sides instead of 6 and 3 strings per side instead of 4, this Brainstring offers an even more confounding challenge! Make a knot, or straight lines, or makes patterns of your own with the nylon strings — holding the polycarbonate orb and grabbing the strings the ergonomic nubs is a joy for the brain AND your fingers!