Description12mm Septa, PTFE virginal, 53° shore D, 0.25mm SpecificationsFeaturesDocuments 12mm Septa, PTFE virginal, 53° shore D, 0.25mm Diameter (d) - mm 12 Durometer 53° shore D Thickness (w1) - mm 0.25 Material PTFE Quantity per pack 1000 stuks in PE-zak