The Adjuster Caddy set includes: 5 Adjusters 4 Extenders and Caddy Bag Adjusters: Two large wedges elevate the pelvis to decompress the spine, allow more elevation for larger frames, and more abdominal space for pregnancy. Two rectangular adjusters provide increased lumbar support and decompression as well as a deeper abdominal recess. One small wedge is used for varying flexion and extension of the cervical spine. (Total of five pieces) Extenders: Lengthen the bodyCushion for longer torsos and provide support in the side-lying position. (Total of four pieces) Adjuster Caddy Bag: Holds and organizes the Adjusters and Extenders. Available only in Black.