Thank you for viewing. 【Doctor-Supervised Lumbar Support Structure】 An air cushion designed to follow the natural curve of the lumbar spine. It firmly supports the lower back even during prolonged sitting, such as in a driver's seat or at a desk, and supports correct posture. It can be used comfortably on overseas trips and overnight buses. 【Adjustable Air Volume for Desired Firmness】 By adjusting the amount of air, you can freely customize the firmness and thickness. You can inflate it firmly for lumbar support or soften it for reading or as a backrest, making it comfortable to use in various situations. 【Only 118g & Palm-Sized】 Super compact and weighs only about the same as two eggs. When not in use, it can be folded up small and stored in a bag. It's easy to carry around in any situation, such as long-distance drives, airplanes, and bus travel. 【Reverse Flow Valve for Easy Air Adjustment】 Adopting an improved valve, it can be easily inflated with a few breaths. Deflation is also smooth, and it is designed to be easy to handle for women and the elderly. It is widely used as a lumbar support, backrest, and reading pillow. 【Unique Design to Reduce Stress on the Lower Back】 With its unique support structure, it reduces lower back fatigue even after sitting for long periods. It maintains the natural S-curve of the spine and alleviates stress on the lower back. It provides a "comfortable sitting experience that is gentle on the lower back" anywhere: at home, in the office, or while traveling. s299