Free shipping to the Continental USA.
Non USA buyers, please contact me for a shipping quote.
Length (tip to tip): 87mm
The Master Quadrant Ball is affectionately known as the "Sea Mine" due to its distinctive shape. This is a spherical 4x4x4 with free rotating circle parts that can be exchanged at 45-degree increments. This puzzle turns very smooth and comes fully assembled, ready to play. Enjoy!