Individually blown in Denmark of B orosilicate glass. (Laboratory glass) by Orskov. Heat resistant and o ven, microwave and dishwasher safe. Sold as set of 6 glasses: Small: 2.75" dia x 2.75" h -holds @ 6.33 oz Medium: 2.4" dia x 4" h -holds @ 7 oz Large: 2.5" dia x 4.75" h -holds @ 10.5 oz X-tra Large: not in stock Same glasses that we use at Angel Face!