The concave structure can hold your neck, and give it well protection.The other side of the double-side pillow can be filled with buckwheat shells, chaffs or vacuum cotton etc.

• 凹槽结构独有设计，增加颈部承托，保护颈椎，双面枕另一面可选择填充荞麦壳、金谷壳、真空棉。