Screw Cap with PTFE/Silicone Septum for 9mm Vials. MOQ: 50 packs, 100pcs/pack; Suit for: 9mm Short Thread Vial. Cap Color: Blue, Red, Yellow, Black or other. Cap Material: PP. Cap Feature: 6mm Centre Hole or Closed-top. Septa Material: PTFE/Silicone. Septa Size: 9mm*1mm. Septa type: Non-slit / Pre-slit.