Humanized Massage Point: 8 Massage points are designed to assist the massage of the waist and spine Ergonomically Fit the Spine: The shape of the pad is specifically designed for fitting the human spine, which keeps it in a normal state of curvature for long term sitting or sleeping. Comfort: The two-wing design can surround the back very naturally like being hugged, you can sleep on your side comfortably with this pad supporting the waist and lumbar. Gift Ideas: A very great gift for elderly persons, pregnant women, families and friends who need long time car commutes. Note: The pillow has a skin-friendly cotton cover that is machine washable in cool water, do not bleach and iron. The foam is not washable. Material: Memory Foam Size: 49 x 27 x13.5cm Weight: 500g