About this 3D model

Montini building bricks were produced from 1961 to 1969 in the Netherlands. They were originally made from soft, pliable polypropylene. The diagonal fins bend slightly around the pips of the other block. http://www.puppenhausmuseum.de/montini-bausteine.html Please do not mix these with original Montini parts. PLA is much harder than the original bricks, and the layer ridges act like sand paper. You will wear out the original Montini bricks very quickly. Just like the vintage original Montini parts, these are compatible with classic Lego full height bricks.