I don't know of another word besides GINORMOUS to describe this match cover from the Hard Rock Hotel Las Vegas.
It measures 8¾ inches long by 3¼ inches wide.
I've put this cover in it's own 8½ X 11 plastic page for display in my three ring binder.

In the scan a standard 30 strike match cover and a chip are dwarfed by it.
Anyone have a variation?

This matchbook was available during the early years of the Hard Rock Hotel, circa 1995.