Features: 3D stereo design, with the effect of decompression, sedentary is not tired. Shallow groove design, ventilation and ventilation for maintain a comfortable body. Curved hips, shaping beautiful buttocks: By distracting the buttocks and thighs from the strength points, the internal airflow changes with the sitting posture, adapts more closely to the hip curve. It can be designed with water to keep the sitting position cool and not hot. The backrest is synchronized on the line: it is suitable for office chairs with pillows and seats on the car, to avoid the problem of sedentary back and tight air. Features: Color: black Material : polyester Product size: 37.5 * 36 * 4cm Package size: 38 * 36 * 2.5cm Package weight: 320g Packing List: 1xSeat Cushion 1xPump 1x User Manual