Dual Layer Glass Tea BottleDescription Tea making is now as simple as flipping a switch ! Simply turn this bottle over and start sipping away ~ Double layer glass walled structure makes it easy to hold while providing some insulation to keep your tea warm for a longer period of time. The bottle is also designed for different types of usage. Drinking alone ? simply position tea leaves in the smaller chamber and fill the bigger chamber with hot water. Seal up, turn around to brew