Features: Package contains 2 complete replacement straws for Thermos 12 oz. Funtainer bottles (model F400). Includes 2 soft silicone straws and 2 hard straw stems. Not for hot liquids; Not intended for carbonated beverages. Not compatible with Thermos Foogo 10-ounce or 11-ounce straw bottles, or any other Thermos straw bottles besides Thermos 12-ounce FUNtainer bottles (model F400). Item Number: F401RS6.