The Bubble Magic Shaker bag is made from waterproof neoprene material, with a built in mesh screen. It features attached handles, and Designed for the dry ice extraction process. The Bubble Magic Shaker bag is made from waterproof neoprene material, with a built in mesh screen. It features attached handles, and Designed for the dry ice extraction process. The Shaker Bag + Bucket Kit and additional bags are available in 3 different micron levels.