Premium Seat Cushion Wedge | Ergonomic Design With Patented Air Cell Technology | Strengthens Core, Improves Posture and Provides Sciatica, Tailbone and Back Pain Relief | For Chairs, Cars and More Strengthens Your Core: Our cushion features innovative, patented air cell technology that encourages active sitting and helps strengthen the core muscles around your spine. It functions like a balance ballbut doesnt look as strange to sit on! Relieves Back Pain & Improves Posture: The wedge design tilts your pelvis forward, promoting good posture and reducing the pressure on your lower spine. Coccyx cutout provides added comfort. Great for people with disc problems, sciatica, and tailbone pain. High-Grade Materials: Made from premium luxury vinyl, comfort foam, and pressurized air cells, our cushion wont deflate like inferior products. Its wipe-down, removable cover provides lasting protection and looks sleek in your home, car, or office. Use Anywhere: Our seat wedge goes wherever you go! Keep it handy for long car rides, the office, and for those long sports games sitting on hard bleachers. You can even keep one on your dining room chair. Comes with its own drawstring bag for easy carrying. 1-Year 100% Money-Back Guarantee: We know youll feel the difference after using our seat cushion just once. But if youre not thrilled with your purchase for any reason within 12 months, well return every penny you paid. No questions asked.