Hydro Crunch 5 gallon 5-Bag Essence Ice Bubble Herbal Hash-Bag Extractor Kit Hydro Crunch Extractor Bags are color and labeled to the correspondence microns High quality screens are made from mono-filament The 5 gallon 5 bag kit allows you to separate your herbal into 5 different grades of high quality concentrates (1)Purple=25Micron(2)Yellow=73Micron(3)Orange=120Micron(4)Red=160Micron(5)Blue=220Micron Bubble extraction bag is made of long lasting nylon material, prevents from flaking and chipping after several uses.