Features Specifications: Bamboo charcoal pillow Far infrared ray effect: far infrared ray emitted by bamboo charcoal is easy for human body to take in.It can improve the local circulation of blood, gives you a better sleep with sweet dream. Anion effect: anion emitted by bamboo charcoal can penetrate the skin and make you feel calm and relaxed. You can put the pillow mattress directly into your pillow. Color, size and pattern are per your requirments. Your logo are welcome. Bamboo charcoal is widely uesed in householding,car inner decorating and freshing,shoes and clothing making,environmenal protaction,ect.Pls inquiry us for other bamboo charcoal products you are interested in.