Commune Tumbler Glasses x2

Materials: 100% Borosilicate Glass

Dishwasher safe at all temperatures and settings. When hand washing use soft non abrasive sponge and dish liquid.

R+D Lab use 100% Borosilicate Glass made by a German company that invented it in 1893. Using borosilicate glass leaves a low carbon footprint, it is made from naturally abundant materials that are more easily acquired, the environmental impact is also smaller. If handled with care, borosilicate glass will last a lifetime.