Thin & Skinny Rosin Filters by Rosin Technologies are specially designed 90 micron screens for pressing solventless oil using the Rosin Technique. These filters are specifically sized to fit the puck made with the Thin & Skinny Rosin Mould. This pairing provides the operator with a great method for fast and consistent packaging. Use the open side of the filter sleeve to insert your flowers or dry sifted material. Fill and cut filter sleeve to desired length. The 3.25" x 1.25" single use Rosin Filters are intended to hold 3 - 5 grams and withstand temps up to 300°F