Manufactured with Blue ABS 9-425 9mm type threaded vial caps Pre-slit liner , more easy to pierce , protect injection needle With Blue PTFE Faced White silicone ,pre-slit Liner Blue screw cap with hole + PTFE / Silicone septa Compatible with most Autosampler vials Suitable for 1.5 mL, 1.8 mL, 2 mL 9-425 vials