High-density slow-rebound inner core, comfortable nap, removable and washable velvet cover feels comfortable and soft. Size: 12.48''x8.58''x5.07''(inch), hollow design for free breathing and natural ventilation. The perfect arm pillow for adults, the wedge-shaped design relieves arm pressure. It can be used directly after taking it out. The hardness of the sponge material is slightly harder, which can support lasting power. Sleeping wedge pillow for adults in office, library, house, travel. Sleeping on the stomach, sleeping on the stomach, and sleeping on the neck are all very comfortable. It can be placed on the back to effectively reduce the fatigue of prolonged sitting, and a pillow for sleeping on the stomach can also be used.