Simport® - Sterile T309 CryoVial • External Thread ScrewCaps • Easy 1¼ turn opening and closing • Leakproof LIP SEAL ScrewCaps • Perfect for short term freezing • Graduated • Large white marking area • Very transparent clarity • Medical grade, USP class VI and FDA compliant polypropylene • BSE/TSE, BPA, phthalate, Latex and Heavy metal FREE • Sterilized by Gamma radiation (Autoclavable) • 95kPA Tested • Certified RNase, DNase, DNA and Pyrogen (cytotoxin) FREE