Beskrivelse
Beautiful double wall mug made of borosilicate glass med bamboo lid. 280 ml capacity.
Remarks: Presentation in eco design box.
Borosilicate glass is a type of glass med the main glass-forming constituents’ silica and boron oxide. Borosilicate glasses are known for having very low coefficients of thermal expansion (∼5 × 10−6/ °C at 20 °C) making them resistant to thermal shock more so than any other common glass.
