Rainbow Shamrock Shot Glass 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