With the tube body made of medical-grade polypropylene and the tube cover made of medical-grade polyethylene, the tubes conform to the USP Class-6 standard.

15ml /50ml conical bottom design, high clarity, black clear scale line on the tube body, and a preset white writing area

Double threaded tube cover, easy to grip for single-handed operation and reliable sealing

Flat cover design; the cover top can be used as a sample information marking area

RNase, DNase Free

Sterilized by gamma rays; sterile and pyrogen-free

Various packaging methods, including sterile racked packing, sterile bag-packed bulk packing, and non-sterile packing, are available.