"Ball Buster" is a geometric disassembly/assembly piece designed by Lee Krasnow and produced by NothingYet Designs.
Some details from Lee:
Based on Stewart Coffin's Cluster Buster, and inspired by an ex-girlfriend of mine, this very difficult puzzle has a hollow space inside big enough to hold something like a coin, ring, or folded banknote. It comes with a matching elegant display stand which is also a challenging puzzle! Both of these puzzles require a lot of dexterity to solve.
*Contains small pieces and is not intended for anyone under 16yrs of age.
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