It is an ideal cushion of home decration and health keeping.It can relieve your backbonepain and keep your backbone at right position,strenghthen your muscles,asit is made of non-toxic and high-quality silk fabric,which clean easily with mild soap and water,designed to coordinate with chair, sofa ,bed.Features:1)Constructed from high-quality fabric2)Can be used indoors or outdoors3)Size: 22"x22"