HALOViE Soft Reading Pillow Triangle Back Cushion Pillow Sofa Bed Office Chair Rest Pillow Back Support Pillow Size: 18.5*17.7*9inch, item Measure by hand, it could be 1-2cm different. Material: Made of super soft high quality pearl wool, provides comfortable back & neck support while reading and watching TV. Protects lower spinal discs from stressful compression, alleviating lower back pain. This back cushion pillow with Removable Cover, It is easy to removing and washing. Note:This pillow is soft, not hard, great for back support in bed, in office chair, in sofa etc. Ideal gift for yourself, friends or families.