TOP QUALITY FRIENDLY MATERIAL - 100%memory foam, this is not down pillow, high-density slow rebound inner core for the comfortable nap, Removable and washable Velvet Cover feels comfortable and soft. The new wedge pillow for sleeping is a little bamboo smell, please leave it in air for 2 or 3 days before using, it will be best. UNIQUE DESIGN - Size: 17.7x17.7(in), hollow design free-breathing, natural ventilation. Perfect arm pillows for adult, wedge-shaped design to ease the arm pressure. It can be used directly when taken out. The hardness of the sponge material is slightly hard and it can support the lasting force. MULTI-USES - Great sleeping wedge pillow for adults in office, library, house, traveling. Tummy sleep, face down sleep and neck sleep are all very comfortable. It can be used on the back to effectively reduce sedentary fatigue, pillow for stomach sleepers is also ok.