DescriptionUltraClean Closure, 13mm PE Cap, transparent, centre hole, Silicone white/PTFE red, 55° shore A, 1.0mm SpecificationsFeaturesDocuments UltraClean Closure, 13mm PE Cap, transparent, centre hole, Silicone white/PTFE red, 55° shore A, 1.0mm Diameter (d) - mm 13 Colour Transparant Durometer 55° shore A Thickness (w1) - mm 1 Material Silicone / PTFE Quantity per pack 100 stuks in PE-zak