Alcoholic spirits measure

These types of measures are commonly used for highly demanded drinks in professional bar settings, and are often incorporated into visually-appealing machines that serve both functional and marketing purposes for the liquor being poured.

This second variation is commonly seen in a double-thimble or "hourglass" form, with two metal cups of different volumes (often in a 3:2 or 2:1 ratio, like a U.S. standard 1.5 fl oz "jigger" and 1 fl oz "pony", or UK standard 25/50mL or 35/70mL combos) spot-welded to each other at their relative bottom surfaces, possibly with a handle between them, allowing one unit to easily measure two common volumes.

[3] Common in U.S. bars, these devices appear visually to be the same as a free-flow pour spout, but have an internal mechanism to block the tube after a pre-defined and calibrated volume of liquid has passed, oftentimes a set of 2 or 3 balls.

Because of the geometry, the bottle with one of these spouts needs to be held at a specific angle, typically 45 degrees, otherwise the volume poured will be under or over the stated calibration.

Common in France, where it is called a bouchon doseur boule, this device consists of a transparent T-shaped glass tube arrangement,[4] with a ball on one end of the horizontal section, a cap or cork on the other end, and a cork or plastic bottle stopper on the bottom of the T, allowing the measure to replace the cap of a liquor bottle.

[5] Landlords have the option to decide which quantity they sell, with the difference being caused by historically larger measures being used in Scotland and Northern Ireland.