This series of products adopts imported high transparent polypropylene raw materials, and the conical tube bottom can withstand 12000 x g centrifugal force and -80~121°C. Tight screw cover design, non-toxic O-ring protection, prevent liquid leakage. When storing samples, it is not suitable to fill them too full, so as not to cause pipe explosion. This series of products have three specifications: 0.5ml, 1.5ml and 2.0ml, and seven color covers are available. It can be used for sample subpackage, storage and transportation of oligonucleotides, enzymes, buffer solutions or other reagent solutions.