This set of four laboratory-grade shot glasses is made from Borosilicate 3.3 glass, each with a 50 mL capacity. The set includes one flat-bottomed volumetric flask, one wide-mouth conical flask, and two low-form beakers, all crafted to true laboratory specifications. These pieces are from the hBAR at Home series and are made from the same quality borosilicate glass used in professional laboratories. The borosilicate construction provides excellent thermal shock resistance and chemical durability.