These personalized shot glasses are made from restaurant-grade clear glass, giving them a quality feel. The solid base makes it sturdy and reduces the risk of tipping it. They come in one standard size: 1.5oz (44.3ml). .:Material: 100% clear glass .:One size: 1.5oz (44.3ml) .:Heavy solid glass base minimizes spilling .:NB! The listing includes a single shot glass