Features Specifications:Sell Cassia & kapok pillow, Herbal pillow, modern pillow  Cassia & kapok pillow, Herbal pillow, modern pillow * Feature: One side is Semen Cassia. The other is Kapok. ** Fiber : 100% cutton ***  Semen Cassia, Chinese medicine, used in the pillow is cool and can make head massage.And thus it improves blood circulation of the users' head. **** Kapok is natural, soft and warm in winter. *****  The concavity of pillow is designed according to the cervical vertebra of the neck. It brings a comfortable sleeping to the users.