This 30mL (1oz) natural polypropylene copolymer (PPCO) narrow-mouth packaging bottle comes with a polypropylene closure. It has a robust construction for packaging use, with excellent impact and chemical resistance and clarity. The translucent bottle is leakproof and autoclavable. Designed for storage, shipping, and packaging of liquids. Autoclavable. Bulk Packed. Leakproof. Translucent. Bottle Material: Polypropylene Copolymer (PPCO). Neck Type: Narrow Mouth. Closure Material: Polypropylene. Height With Closure: 61mm. Outer Diameter: 34mm. Neck Inner Diameter: 14mm. Closure Size: 20mm. Neck Finish: 20-415. Capacity: 30mL (1oz). Nalgene® #: 312087-0001.