Frozen Cell designed Sperm Preservation CRYOVIAL (0.6 ml) are specifically made to preserve washed human sperm at ultra low temperature, (-1960C) in liquid nitrogen. Sperm Preservation Cryovial (0.6 ml) manufactured by utilizing sustenance called high density polyethylene. For extra safety there is a silicon squeeze cap. Which make it complete hole proof. Moreover its twofold thick wall gives it additional safety .
Safe for sperm preservation even by vitrification method. Its walls are strong enough to sustain sudden change of temperature from 370C to -1960C.
Cap is with external thread. Moreover silicon press cap work like spring washer to lock the cap.
Its high thickness wall make it suitable to keep it in liquid nitrogen even for indefinite period.