Features: This silicone chair cushion will perfectly fits your buttocks curve, soft and without losing support force, provide comfort by reducing pressure on the lower back, waist, hips, and thighs, keeps healthy posture. Protect your upholstery to help relieve tension, stress, aches and pains. Suitable for most vehicles, for cars, trucks, minivans, trucks, office chairs with headrest support. Make an excellent travel companion, even for simple trips home or to the office. Its lightweght & foldable means you can take the sitting pillow anywhere you go. Three kinds of cushions and four colors for you to choose! Specifications: Material: Silicone Type: for Seat Cushion, Lumbar Cushion, Headrest Pillow(OPTIONAL) Size of for Seat Cushion: Approx.45x43cm/17.71x16.93in Size of Lumbar Cushion: Approx.52.5x34cm/20.67x13.39in Size of Headrest Pillow: Approx.33x18.5cm/12.99x7.28in Color: Black, Gray, Coffee, Beige(optional) Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1x Car Cushion