This Erlenmeyer flask has measurement lines every 25 milliliters up to 125 milliliters - which is 1/2 cup. It's capacity is more than this.
You can use this flask for numerous things. Use it to measure and hold double-shots & triple shots. Or use it in your table service as a creamer, or to hold sugar.
Its tapered shape allows for accurate measurement, and makes it easy to pour things. A useful tool and appliance for various things, with an intriguing look.