This is a replacement for the top piece that we use in our Sleep EZ Adjsutable Pillow. Now when you're ready for a new pillow you can simply replace the top piece and not all of the spacers.
It also makes a great travel pillow and fits easily in a carry-on bag.
The spacers underneath the Pillow Top Piece pictured above are not included. When traveling, simply use towels underneath it to bring it up to the right height.