Wheaton Wide Mouth Packers are manufactured from amber soda lime glass that conforms to USP Type III requirements. Amber glass provides protection from light sensitive products and wide mouth is ideal for dry powders. Partitioned carton protects bottles from scratches during shipping, and they become useful for storing samples. Each case of bottles also includes a hazardous communication label and tamper evident seal if labeling and / or sealing the bottles is required. Extra screw caps can be purchased separately.