This is an inner plug for Stainless Bottle Flasker. The product can be used for a long time with spare parts.

Notes:
-The parts will be discontinued with the end of the stock. We no longer stock the lid, gasket for the lid, and gasket for the inner plug. We apologize for the inconvenience.
-Please note that this product cannot be used for bottles other than the Stainless Bottle Flasker. The design of the Vacuum Flask Stem and Stainless Bottle Flasker is similar, so please check the engraving on the bottom of the bottle before purchasing.
-This Inner Plug can be used for both 320 and 420.
-The gasket is not included.