Waterglider International Zafu Crescent: Meditation Pillow with USA Buckwheat Hull Fill, Certified Organic Cotton- 6 Colors Absolutely stuffed with buckwheat creating a firm cushion Convenient zipper located under handle allows for adding or removal of hulls 16 inches wide and 8 inches in height. Height is adjustable. Organic Cotton Twill cover Crescent shape allows for feet to be tucked in closer to the body, making it easier on feet and ankles