The Original Wine Punts drinking glasses are all hand made from repurposed wine bottles collected from their local community. Each and every glass is fire polished then annealed for the smoothest finish and greatest durability. By fire polishing we ensure that each glass will have a smooth finished rim that is consistent with the rest of the glass. This process also prevents cracking and chipping from normal use. 16 oz. Set of 4. Assorted colors. Microwave & dishwasher safe. *Volumes vary slightly due of variations in bottle themselves.