View this page in full at: https://greyhound.glownet.uk/supplies-and-accessories-vials-and-caps?specs=f_material:polypropylene!!0!!||f_septum%2fliner:polypropylene+(clear)%2fsilicone+(blue)!!0!!||f_septum%2fliner:ptfe+(red)%2fsilicone+(white),+bonded,+pre-slit!!0!!