The goal of Gemini is to insert 5 multicolored acrylic "gems" into a gray and clear acrylic tray through a restricted opening.  Although the opening seems fairly large, it is difficult to move the seemingly unwieldy pieces so that the last one will fit in.  A clever packing puzzle for the spatial-thinking puzzle enthusiast!
Designed by Haym Hirsh and produced by Rex Rosano Perez.
 
 

• See at Puzzle Master