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For those who might be interested to know, there is a large format Czech desgn malaise trap, same dimensions as the English design, but it comes with its own set of aluminium poles (See Photo). The entrance into the collecting bottle (from the tent) is a better desgn and it catches loads, but it has a problem with the bottles in that the connector between the two has been broken almost from day one in both this example and one that the NHM London used. In the end, with mine, I reconnected the frame/tent part to a different set of bottles.