This 30mL (1oz) wide-mouth packer bottle has a white polypropylene screw cap with a PTFE/foam liner. It is manufactured from amber-colored Wheaton '900' glass, which meets USP Type III standards. The amber color is used to protect light sensitive materials. The wide mouth design allows for easier handling of dry or solid samples with easy removal of contents. Bottle is ideal for storage of dry powders. Bottle Material: Type III Soda Lime Glass. Bottle Color: Amber. Neck Style: Wide Mouth. Cap Material: Polypropylene. Cap Color: White. Screw Cap Size: 28-400. Cap Liner Material: PTFE/Foam. Diameter x Height: 37 x 65mm. Capacity: 30mL (1oz). Wheaton #: W216945.