Description

24 steel needles are settled at the bottom of the
cuboid box, whose crust is made of transparent
plastic. They are organized in 4 lines,6 in each line. 24
pieces of little magnetic needles are put on the top
pof the steel needles covered by a transparent plastic
plate. Each pieces of magnetic could rotate around
the steel needle.
Dimensions: 15 x 11 x 2.5cm