Comfortable pillow made with graphene material. Quilted design for excellent breathability. - Brand: Serta - Product Name: Graphene Pillow - Color: White - Features: Quilted design Retail Price: ¥17,380 Purchased in mid-December 2025 at a furniture store. I bought this to match my sister's, but I no longer need it, so I am selling it. I used it once with a pillowcase on. Please refrain from purchasing if you are overly concerned about cleanliness. Thank you.