20 Oz Coffee Mugs

coffee mugs
(coffee mug) a mug intended for serving coffee
A mug is a sturdily built type of cup often used for drinking hot beverages, such as coffee, tea, or hot chocolate. Mugs, by definition, have handles and often hold a larger amount of fluid than other types of cup.

20
twenty: the cardinal number that is the sum of nineteen and one
twenty: denoting a quantity consisting of 20 items or units
The 21st century is the current century of the Christian Era or Common Era in accordance with the Gregorian calendar. It began on January 1, 2001 and will end on December 31, 2100.

oz
ounce: a unit of weight equal to one sixteenth of a pound or 16 drams or 28.349 grams
Australian
The ounce (abbreviated: oz, the old Italian word onza, now spelled oncia; apothecary symbol: ?) is a unit of mass with several definitions, the most commonly used of which are equal to approximately 28 grams.
Oz (aka Oz - A Rock 'n' Roll Road Movie also released as 20th Century Oz in United States) is a 1976 Australian film written, directed and co-produced by Chris Lofven.