Our Japanese Buckwheat Hull Pillows will fit the contours of your head and neck and give the perfect amount of support. They are made of 100% double cleaned organic American fluffy buckwheat hulls - the preferred type of hulls for pillows. Unlike imported buckwheat hulls, these contain no dangerous chemicals from fumigation. Faithful to Japanese tradition, the set features an inner case with a convenient 'hidden' zipper for adjusting the amount of buckwheat hulls used for filling to your personal comfort level. The outer sleeve is made of the same cotton fabric, and, like the inner case, is machine washable. (Buckwheat hulls are not washable.) All our pillows are hand made by skilled craftsmen and designed to last for many years. These will quickly become your favorite pillows. Choose from our standard 13" x 18" pillow, our 3.5" diameter neckroll pillow, or order both in a convenient set.