This is wool prefelt in a natural cream color, made by Felted Sky from US wool. These are pieces left over from cutting out the 12 in. x 12 in. squares that we sell, or from our own projects. Current bags include our *thin* thickness only.
Prefelt stands for preliminary felt, meaning it hasn't been all the way felted yet (unlike traditional craft felt). That means you can attach wool fibers to it it very easily.
This is an excellent backing for flat needle felted artwork. While these are small pieces or strips, this is wonderful stuff and can still be used in many types of projects.