This 55 gallon XXXTRACTOR 3 bag kit is fully assembled in Canada using a durable water resistant nylon used in the manufacturing of swimwear. The mesh is woven with a special high module polyester yarn and has been specially developed and engineered in Switzerland for industrial use. XXXTRACTOR herbal extraction cold water filtration bags can extract trichomes from the surface of allmost all plants in a variety of micron sizes using a chemical free extraction technique.