【Freezing and sterilization】5ml plastic vials can store laboratory samples at a low temperature of -112°F, and can also be heated to 248°F for autoclaving. 【Wide application】Suitable for liquid solids, such as: essential oils, spices, dyes, model coatings, powder, seeds, pills, granular objects, etc. Small bottles with caps have O-shaped silicone sealing rings to prevent liquid leakage. Even at the lowest storage temperature, it can ensure the sealing performance, and finally ensure the safety of the samples in the tube 【SIZE】Length with lid 59mm (2.3 inch), vial diameter 15.3mm (0.6 inch). 【Packaging】100pcs flat bottom plastic test tubes with screw caps. Item Weight 13.1 ounces Manufacturer BKMAMLAB Item model number pp211206100 Package Dimensions 10.55 x 8.27 x 3.07 inches