What does a hay hook do?

Hook (hand tool) - Wikipedia

Shur-Hook: The Ultimate Hay Hook, Set of 2 Hay Hooks with Leather Guards : Pet Supplies

What is this hook thing and how do I hang it on an apartment wall with no nails? : r/ApartmentHacks

Ranchers, Farmers Recover From Devastating Wildfires That Scorch Texas, Oklahoma

Hay Strapping Hook

Hay Hook – No. 14 – C. S. Osborne & Co.

Baled Wheat Straw 875333 - The Home Depot

Double HH 28121 Hay Hook - 11

BACK HAIR SHAVING MADE EASY - Body4Real