They could be monoliths, or they could be books, or laptops. I don't know. But they're the stars of the tie. The way the fabric folds gives it the optical illusion of the slabs being 3D and floating in front of the knot, with a parallax toward the back.
I've had this Arrow tie from before 2001. The label says it's 100% silk printed in Italy, but made in the USA. The colors are yellow and dark blue, so don't get into any white/gold/blue/black arguments.