Description: (1) Polyester inner sleeve and slow rebound memory foam pillow filler can help you have a perfect sleep (2) Relax the muscle of neck and shoulders to relieve neck fatigue, shoulder and back pain. Maintain the continuous support shape all the night. Pillows promote proper alignment of the spine, which can relieve shoulder pain Specification: Material: Polyester+Memory Foam Product Features: Deep repair of the cervical spine, strengthening cervical support, stabilizing sleeping position, to help you get a deep sleep Age range: Adults Size: About 50*28*9cm Color:Navy blue,Brown,Purple,Rose red,Gray,White Packing list:1x Butterfly shaped health pillow