What is this close-up picture? (WotsThat: Rope fibre texture (macro))

Question

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

StoneQuartz · Accepted Answer

Rope fibre texture (macro). Rope has been made for at least 28,000 years, and the twisting technique used, spinning fibres one way and then twisting bundles the opposite way, is what lets the strands grip each other and hold under tension.

Answer: Rope fibre texture (macro)

More man made close-ups