Burly, heavy shot glasses that hold up and resist chipping better than thinner, lighter espresso shot glasses. Easily fit under my Rocket 58 portafilter with my Acaia Lunar scale beneath it as well. The printed line quality seems good (all the measuring imprints on shot glasses made by other companies have faded away, so I switched to scales exclusively for measurements as I also learned inconsistent glass shapes affects measurement consistency between vessels). These shot glasses also work well for oyster shooters!

Not two ounces, typical shot glass for a bar

First time espresso maker, an essential tool. A must have to learn and perfect the pull, they are durable and have a classic look.