*Clear white, disposable, sealing, leak proof. *Maximum speed: 12000r / min *Clear white, disposable, sealing, leak proof. *Cap is flat with consistent thickness for trouble-free piercing and forms a tight, leak-free seal that is easy to open, even when wearing gloves *High temperature, high pressure sterilization, acid and organic solvents *High speed centrifugation (30,000 rpm) and suitable for cryopreservation of samples; *Suitable for all standard rotor; withstand temperature range: -80 ℃ + 121 ℃; *In 121 ℃ / 15psi sterilized for 15 minutes.