This brain teasing 3-pack includes the original and two variations on the Brainstring brain teaser together, to keep your mind working for hours on end.

*EXACT COLORS OF THE SET YOU RECEIVE MAY VARY SLIGHTLY

• Comprises of a transparent polycarbonate cube with 12 elastic strings
• Using an ingenious pattern of incisions the strings can be moved through the cube
• The result: complex knots appear on the inside.
• The main goal of the game is to switch the outside button colors, without creating a knot inside.

Brainstring 'R':
Recommended Ages: 7+ Years

• The popular Brainstring turned inside out!
• The "R" stands for "Revenge" and is just as knotty as the original
• This version 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

Brainstring Advanced:
Recommended Ages: 7+ Years

• Advanced playing level
• Brightly colored elastic strings
• 100% symmetrical design
• More challenging puzzle
• Button covers are color matched to the strings
• New, improved high-quality packaging
• Transparent polycarbonate cube
• 3.14" x 3.14"

*EXACT COLORS OF THE SET YOU RECEIVE MAY VARY SLIGHTLY

Shipping Note: An address within the 48 contiguous states is required for delivery

Warranty: 90 Day Woot Limited Warranty