This 5 gallon bags enables you to extract valuable plant resins and separate herbal extract into different grades. Removing dust, leaf and other contamination and holds all the finest and smallest herbal crystals/pore size, making sure no crystals escape. Compatible for use with 5 gallon buckets or tubs. Compatible with dry ice. Bags are labeled and color coded to corresponding micron rating. Larger bag assortment allows for more exact filtering into different grades. First, Place the filter bag into the bucket.And then, fill the bucket with enough cold water to cover the bottom of the Bubble Bags (about halfway full).Put in Your freeze and Dried Plant Trimmings.Add enough ice to almost fill your bucket to the top. Begin Stirring the Ice and Plant Trimmings for About 15 to 20 Minutes, and Let it sit for 30 Minutes.Pull the Bags Out One at a Time from the Water Bucket.Extracted Herbal will be Available for you to collect.Remove the excess moisture using the pressing screen and a tea towel, and use your herbal extract! colour:Blue（220 micron) Material:polyester size:10*8*5cm Package Contents: 1 * filter bag 1 * 20*20mm Filter 1 * Instruction manual Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.