W 34 is an item which can be transformed from an equilateral triangle into a square and the other way round by turning the elements. This well known dissection of a geometrical surface goes back to the English matematician Sir Henry Dudeney,

Beechwood,  lacquered
Artfully marked with square numbers and references to geometrical rules.
Elements connected with precise joints.

CHF 89.00 inkl. 7.7% MwSt.