What is this close-up picture? (WotsThat: Foam packaging texture (macro))

Question

What object is shown in this zoomed-in close-up photo?

SerpentRoot · Accepted Answer

Foam packaging texture (macro). Expanded polystyrene foam is over 90% trapped air by volume, which is exactly why it insulates and cushions so well despite weighing almost nothing.

Answer: Foam packaging texture (macro)

More man made close-ups