This pillow is made of breathable fiber mesh material and can be used on both sides, with adjustable firmness. - Color: White - Material: Mesh - Firmness: Hard and Soft - Height: Approximately 7 cm Usage History: I bought it last year and used it for about 3 months, but it didn't suit me, so I've been storing it. I used a pillowcase over it. The removable cover has been washed before listing. Thank you for looking.