Rock-It puzzle boxes are one of the most difficult boxes
Heartwood makes. Six sequential moves are required to open this box. This is the top of
the Heartwood line.
To see one of these boxes open click here, then use your browsers back button to
return to this page
A mechanical puzzle is a self-contained object, composed
of one or more parts, which involves a problem for one person to solve by manipulation
using logic, reasoning, insight, luck, and/or dexterity. - Jerry Slocum