Embroidered patch of the Coat of Arms of Ireland, a gold harp, on a blue background, Éire in green above the harp.  
These arms have long been Ireland's heraldic emblem. References to them as being the arms of the king of Ireland can be found as early as the 13th century.
Also known as the presidential flag, it is used by the office of the President of Ireland. 

Product Details
Embroidered Patch, can be ironed-on or sewn on 
strong bold colours,
Patch 7 by 5 cm.  (2.75 inches by 2 inches)
durable, well made,embroidery is highest quality