A mirror with a hole. Very minimalist. How big?

The A5 format (often also called DIN A5) is the most commonly used format worldwide and one of the formats for writing paper standardized in DIN standard "DIN 476" and ISO standard "DIN EN SO 216".

DIN A5 is 148 mm x 210 mm.

A nail is included with the mirrors.
A lot of text for such a reduced item.

Design: Theo van Egmond, 1996 (2019)
Dimensions: approx. W 21 x H 29.7 cm (A4)
Dimensions: approx. W 14.8 x H 21 cm (A5)
with polished edges / thickness glass 5 mm