Oosafe® 5 mL Andrology TubesOosafe 5 mL Andrology Tubes High end plasticware that is approved by scientists but you dont have to take their word for it. Quality testing of each lot ensures that Oosafe tubes meet a high standard every time. Features: Made of Medical Grade USP VI Tested Raw Materials: Polystyrene One cell Mouse Embryo Assay Tested (MEA 80 % Blastocyst) Non pyrogenic: Endotoxin Tested (LAL 0. 03 EU mL) Human Sperm Survival and Motility Tested (SMI 0. 75) Sterilized