Used with a cover for about 3 months. Material: TPE Pillow Type: Bed Pillow Color: Black Size: Standard Brand: "Hitsuji no Iranai Makura" (Pillow You Don't Need a Sheep) Shape: Rectangular 【Comfortable Sleep】The moment you put your head on it, you're enveloped, like floating in water. 【Smooth Turning】The material (TPE) has moderate resilience, allowing for smooth turning as if rolling. Although washed, the material is sticky and prone to attracting dust. Also, as is often mentioned in reviews, there is a rubber-like smell. Please refrain from purchasing if you are concerned.