Rosin Tech 50 Micron Screen 4" X 6" 12pk Stainless Steel Rosin Tech Stainless Steel Screen. Soft, Supple, and indestructable. Keeps you final product free of unwanted debris. Fabric, silks, and plastic screens all rapidly degrade under heat and pressure. Polluting your finshed product is a certainty using anything other than stainless steel screen Steel screen will never degarde or pollute your medical grade product Washable and reusable. You will recieve a 50 Micron 12pk 4" X 6" T-316 medical grade stainless steel screen.