This portrait of A4 size is good for those who think that A5 is too small and A3 is too large. The portrait of multipurpose size is clearly visible and small enough to fit anywhere.
Width: 21 cm. Height: 30 cm.
Advantages of this format: + Larger and better visible than A5. + Perfect for close-up portraits. + Compact enough for its size. + Unbreakable.