E.a@market Children's Reading Pillows Small Back Cushion Lumbar Pillow Sofa Armrest Cushion 20" (Colourful) Material:cotton,blended/Filler: pp cotton Small Back Cushion Size:approx 50cm width*33cm height*13cm thick/20"*13"*5" Have invisible zipper, can unpick and wash Soft and smooth tactility, can as back cushion, waist pillow, pillow, etc. Humanized design, effectively relieve the waist aches