Description11mm Septa, Silicone white/PTFE blue, 55° shore A, 1.5mm, cross-slitted SpecificationsFeaturesDocuments 11mm Septa, Silicone white/PTFE blue, 55° shore A, 1.5mm, cross-slitted Diameter (d) - mm 11 Colour Wit / blauw Durometer 55° shore A Thickness (w1) - mm 1.5 Material Silicone / PTFE Quantity per pack 100 stuks in PE-zak