Small plastic blocks, with hiles on All facets, besides thee facet ir sifes that had protrusions. So that you can join the blocks. However, one facet Of every block was hinged, so You can have flexibility.
There have been additionally tubes Of numerous lengths That would join blocks. I additionally maintain in thoughts plastic ft that match. There might have been issues like in Primary Matt Mason, pumps and tubingso you coukd activate issues.
Aimed On The identical goal as Lego, it apparently onky lasted A pair of years