This cloth was originally for Pro Display that needed to be only cleaned with care using a good microfiber to not ruin the antireflection coating. Apple then started including everything on their catalogue as compatible with it(is it compatible with itself?).

I once bought a Pro Display but returned it. Kept the cloth, it’s still the nicest microfiber cloth I own.

I wish I kept the thunderbolt cable too since they never checked for it in the return.