> and the imperial part there for old people's convenience. And also because that's what was used to actually design the container. Milk bottles in 1 / 2 / 4 /

> and the imperial part there for old people's convenience. And also because that's what was used to actually design the container. Milk bottles in 1 / 2 / 4 / 6 pints (imperial pints, not US pints), 454 g jam jars.