27GROUP Glass Bottle made out of borosilicate glass, a type of glass that contains boron trioxide which allows for a very low coefficient of thermal expansion. This means it will not crack under extreme temperature changes compared to regular glass.

Size: 400ml

Materials:
• Bottle body: High Borosilicate Glass
• Bottle cap: Food Grade Polypropylene(PP)
• Tea strainer: 306 Stainless Steel