Bel-Art Precisionware Wide-Mouth 250ml (8oz) Autoclavable Polypropylene Bottles; Polypropylene Cap, 45mm Closure (Pack of 12) (F10632-0006) Wide-mouth lab bottle for filling ease, and is used for liquid, dry product, and sample storage and shipping Polypropylene body for strength, thermal performance, solvent resistance, and for its ability to be sterilized and autoclaved; translucent for reduced light filtration while still allowing visual fluid monitoring Cylindrical shape for a wide variety of applications that require solution containment Screw cap with deep square threads secures contents to help prevent spills and evaporation Autoclavable for applications requiring sterilization