Bel-Art Precisionware Wide-Mouth 250ml (8oz) High-Density Polyethylene Bottles; Polypropylene Cap, 45mm Closure (Pack of 12) (F10625-0006) Wide-mouth lab bottle for filling ease, and is used for liquid and sample storage HDPE body for transparency and low-temperature, impact, and moisture resistance Cylindrical shape for a wide variety of applications that require solution containment Screw-on polypropylene cap secures contents to help prevent spills and evaporation compliant material for non-contaminating storage of chemicals and food-grade products