Designed specifically for the dry ice extraction process, the Bubble Magic™ Shaker includes the custom-fit bucket and shaker bag, made from waterproof neoprene material, with a built in mesh screen and attached handles. The Bubble Magic Shaker will decrease the time and effort it takes you to extract your plant material. The Shaker Bag + Bucket Kit and additional bags are available in 3 different micron sizes: 73, 120, and 190. This particular Bubble Magic Shaker is the 73 micron.