FUNCTIONAL PRINCIPLE: This cushion can relieve stress, beautiful butt plasticity, prevent hemorrhoids, health and comfort, sedentary is not tired 0.360 degrees perfectly fits the hip curve, all-round around the hip, soothing hip pressure. CORRECTING THE SITTING POSTURE: conforming to the engineering structure, the even support of the cushion to the buttocks can make the back natural, maintain the posture and correct the design of the back end, and care for the pressure of the tail vertebra to make the body more relaxed. MEMORY COTTON CORE: The elastic inner core of the seat cushion is made of high-sensitivity memory foam, which can bear the pressure of the buttock according to the body weight distribution and the different needs of each person. DOUBLE-HOLE CUSHION: more breathable, the middle of the cushion is designed with large holes, breathable, hollow, no pressure on the anus, even if there is no sultry feeling in summer, it is suitable for all seasons. It is the best choice for postpartum and postoperative patients. WIDE RANGE OF APPLICATIONS: This seat pillow is suitable for computer chairs, car seats, wheelchairs, any home chairs or buses, seats on airplanes or trains for drivers, teachers, students, wheelchair users, pregnant women, Office workers and so on. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.