37 country flag icons rendered at 256×256, 128×128, 64×64, 48×48, 32×32, 16×16 pixels and formats are png, ico and icns.
All the icons contained in this set are free for non-commercial use. For commercial use or extending existing set, please contact customicondesign.com.
From: customicondesign.com
  Download ico    Download icns    Download png    Demo