2.5x4.5" 37 Micron Nylon Rosin Bags Pack - (25pc Per Pack) Rosin Press Bags - Flower Extraction
I didn't like that these bags do not withstand any substantial heat, they melt easily even under 200 degree temps.
Using a press to make Rosin, dabs or other heat extracted cannabis tinctures requires more heat than these bags can withstand.
Good bag wrong description by seller. Heat should not be used in the description of these bags.