Aijiren HPLC Pre-Slit 9-425 Screw Thread Vial Blue Caps . 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