This 320ml double-walled glass infuse flask is perfect for drinking loose leaf tea, herbal tea or fruit infused water at home or on the go.It is made from a double layer of strong borosilicate glass that keeps drinks warm for up to 1 hour and has a leak-resistant stainless steel and polypropylene (PP 5) lid with a silicone ring inside.  The base of the lid is stainless steel and designed so that no plastic comes into contact with liquids inside the bottle.  Includes two independent filters which are used for different types of infusion:Long filter basket for short infusion - Fill basket with tea leaves, fit into neck of flask and pour hot water over to infuse.  Remove before drinking.  Short filter for long-lasting infusion - Fill flask with a few tea leaves, herbs or fruit pieces, place the small filter on top and then add hot or cold water.  Please take care when pouring and drinking hot liquids. Each glass flask is hand blown so will differ very slightly in size. For a snug fit of the filters in the neck of the flask please adjust the clips on the rim so they fit your flask perfectly.Produced responsibly in China.  Presented in a cardboard gift tube with instruction leaflet and care advice.Hand wash only.Approximately 18.5cm x 7cm diameter.NB: Not suitable for carbonated drinks due to build up of pressure.