Material: Mesh fabric Core: Buckwheat + pearl cotton The handle is smooth and delicate, excellent breathability. Waist pad size: 48 * 34 * 11 / 3.5cm; Height cushion: 17 * 17 * 2 cm. You can adjust the height with height cushions. Newly designed lumbar pillow for health care. The middle is slightly hard and the sides are slightly soft. When you sleep, it sticks to your lumbar spine and there is no gap between your hips, so you can sleep easily. Ergonomic Health Care Waist Pillow - perfectly fits the body, fills the gap between the waist and bed, supports the waist, and distributes the pressure evenly to reduce the burden on the lower back. Gently supporting the lower back can relax the muscles of the lower back and waist after childbirth. It is designed to help achieve an ideal posture and a perfect fit to the waist Relieve Back Pain Due to Side Sleeping - For side sleeper, the curves around the waist and lower back will be maintained well with the pillow of low repulsion force, thereby protecting the spinal cord and muscle from injury. The pillow helps keep a natural posture easily, especially for those who often turns over or cannot fall asleep unless lying on their side Use in pregnant women, postpartum women, and people with different types of back pain to help maintain lumbar curvature and relieve back pain.