Tamper-evident screw cap Corning® Octagonal Polyethylene Terephthalate (PET) Bottles Available in six sizes: 30 mL, 60 mL, 125 mL, 250 mL, 500 mL, and 1L Packaged in convenient, shrink-wrapped trays within an outer bag to ensure cleanliness Break-resistant bottles are an ergonomic and easy to handle alternative to glass