●The lumbar support pillow is made of high quality memory foam, which has good resilience, which can naturally return to its original shape. ●The back support pillow comes with ergonomic and wraparound two-wing design to fit the curve of the lumbar spine. ●The lumbar support pillow can evenly distribute back pressure, reduce lower back pain. ●This lumbar cushion is 7.6 x 4.1 x 2.1 inches and can be rolled up for convenient storage. ●Fills the empty space between waist and bed to provide comfortable lumbar support.