The solid base makes it sturdy and reduces the risk of tipping it. They come in one standard size: 1.5oz (44.3ml). Details: .: Material: 100% clear glass .: One size: 1.5oz (44.3ml) .: Heavy solid glass base minimizes spilling .: NB! The listing includes a single shot glass SHIPPING: .: https://www.etsy.com/listing/1648191982/dragon-shot-glass-dragon-gift-fantasy