<strong>Dulytek Premium Filter Bags</strong> are used for press extraction out of herbs. The reusable bags are made out of the highest quality 160 micron dye-free food-grade nylon thread that is durable, resistant to boiling and solvents. The new super tight nylon folded seam stitching assures that your bags will never break or blow out during pressing. The bags are turned inside out for easy filling and handling. Each package contains 20 bags and one flexible packing card making it convenient for you to fill them up with pressing materials. <br/><br/>Technical Specifications:<br/> Mesh Size: 160 microns / micrometers<br/> Dimensions: 2" x 4" / 51 mm x 102 mm<br/> Material: 100% Nylon<br/> Quantity Per Pack: 20 Bags<br/>