Verta Fit air cushion supports the natural S-shape of the spine, effectively supports the waist and body. Air cushion significantly reduces the tension of the intervertebral disc and back muscles. It ensures that you maintain a healthy sitting posture at anytime, anywhere. Features Maintains a healthy sitting posture naturally without force Effectively support and protect user's waist, avoid strain caused by excessive burden on waist Significantly reduce fatigue and soreness of back muscles Extreme comfort: Relieve the muscle tension caused by sitting for a long time Multi-purpose design: After blowing in the right amount of air, the air cushion can be used as a footrest for light exercise of the feet (especially suitable for people with limited mobility) Especially suitable for people who need to sit for a long time Portable: Could be used at anytime and anywhere Durable : High quality frabic used to ensure air flow amount remains unchanged