Size: 6.5 x 4 cm (2.56 x 1.57 inch)
The flag of Oman consists of three equal sized horizontal stripes with a red vertical stripe on the left side of the flag - the top horizontal stripe is white; the middle one red; and the bottom stripe is green. Situated in the top of the vertical stripe is the national emblem of Oman which consists of two crossed swords, a dagger called a Khanjar and a belt.
History: The Oman flag was adopted on November 18, 1995, after modifications were made to the Oman flag of 1970. A coup d'etat by the son of the ruling Sultan in 1970 resulted in a name change from the Sultanate of Muscat and Oman. At this time, white and green horizontal stripes and the country's emblem were added to Oman's previous entirely red flag.
Interesting Facts: The proportions of the Oman flag were changed from 2:3 to 1:2. The basic appearance of the flag remained the same except that the horizontal stripes are now equal in width. (source: worldflags101)