Used to support and position the body for optimum alignment or for comfort. Three sizes available, one of each size included in bundle:

– 1" x 6" x 9" (2.5cm x 15cm x 23cm)
– 2" x 6" x 9" (5cm x 15cm x 23cm)
– 2.5" x 10" x 13" (6cm x 25cm x 33cm)