This is a gray pillow cover made of a fabric similar to silk or satin. I purchased it as a silk cover, but there was no quality label. The feel of the fabric is like satin, so I'm listing it as "silk-like." It certainly doesn't seem to create much friction, so I'm offering it for sale to those who don't mind if it's not genuine silk, as long as it's a smooth fabric. The size is: 71cm x 45cm (inside) Although it is unused, please understand that it has been stored at home.