It is food grade stainless steel Rosin Tech micron Screen that are excellent for rosining herbal concentrate. Cut to size, fill with herb, fold ends and press. These can be cut to whatever size works best for you.
Packing: smoking pipe filter screen stainless steel mesh screen
3 pcs per pack, 4 pcs per pack, 5 pcs per pack as your request. 500 packs per carton Or as your request