This is a sweat-absorbing pad for a child seat. A set of two baby pillows. Used for about a year. The pillow has ink stains! There are also a few stains on the back of the seat that attaches to the child seat. No synthetic detergents, fabric softeners, bleach, or chemicals are used. It's highly practical, and since Pasima becomes fluffier with each wash, you can use it for a long time! There is no size information.