Features: Inner organic buckwheat hulls core is sealed inside a pouch for easy removal and insertion. Full zip cotton cover is removable and machine-washable. Promotes proper posture and positioning, relieves stress on joints and properly support your spine. Widely use to meditation, zen, yoga, and tea ceremony, floor window decoration. You can use it as a yoga cushion, a bed pillow, balcony cushion, or a patio cushion, to add serenity to your busy life.