Size: 6.5 x 4 cm (2.56 x 1.57 inch)
The ikurrina flag (in Basque) or ikurriña (Spanish spelling of the Basque term) is a Basque symbol and the official flag of the Basque Country Autonomous Community of Spain. This flag consists of a white cross over a green saltire on a red field.
The red ground symbolizes the Biscayan people (the race); the green saltire might represent the Oak of Guernica, a symbol of the old laws of Biscay, or Fueros; and over them, the white cross, God's symbol of Basque Catholic devotion. Thus, red, white and green have become the national Basque colors. (source: wikipedia)