Technology: Tourmaline Anion - Patented Far infrared and negative ion Technology. The tourmaline lining of the tumbler heightens the flavor and freshness of any beverage. The tourmaline's charged negative ions add a pure taste, while neutralizing harsh chlorine and other impurities.
Material: Ceramics
Lid: Acrylic Resin Lid: ABS Inner Thread Cap (acrylonitrile-butadiene-styrene) and silicone Cover(SGS food grade test passed)
