Features: It adopts a 26 degrees semi-circular design to fit the waist. Mesh hollow design, more breathable and comfortable. The interior is filled with pearl cotton, which is moisture permeable and has good resilience. Double sleeping area design: can lie flat and lie on the side. Applicable people: Driver, Sedentary crowd, Pregnant women, Old people, General Specifications: Color: White Material: Polyester fiber Filler: pearl cotton & Buckwheat Size:4 4 x 22 x 5cm Note: 1.Please allow 1-3cm error due to manual measurement. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. What's in the box 1x Lumbar Pillow