2mL 11mm Crimp Caps Specifications (Not included): Septum: Red PTFE / White Silicone Part Number: LBSV122CRS Diameter: 11 ± 0.05 mm Thickness: 1 ± 0.05 mm Shore Hardness: 45° Series: Autosampler Vial Cap Top/Cap Type: 11mm Crimp Top Material: PP(Polyethylene) O.D.: 11.8 ± 0.05 mm Hole size: 5.8 ± 0.05 mm Height: 6 ± 0.05 mm