Lumbar pillow, 1 piece Used a few times and stored for a long time. It has a mesh cover, so it can be washed. The back has a non-slip treatment to prevent it from slipping on bedding. There is no indication of the contents, but I think it is made of urethane material. Flat size: Width 60cm x Length 40cm x Thickness (2-6cm) Thank you for looking.