Lumbar Cushion Reduces strain on the lower back even when sitting for long periods. Product size: Approximately 40cm * 30cm * 9cm Weight: Approximately 120g [Shape that firmly wraps the lower back] The lumbar support structure is the key to maximizing the performance of this lumbar support cushion. This structure allows the spine to maintain its natural curve, reducing strain on the lower back and preventing fatigue even when sitting for long periods. It can be used in the driver's seat, office desk chairs, hotel rooms during overseas travel, and during long-distance travel, providing a comfortable and gentle seating experience for the lower back in any location, making it an essential comfort item for travel. [Adjust the air volume to fit your preference] You can change the firmness and thickness by adjusting the amount of air, allowing you to customize it as a lumbar support cushion or a reading pillow. When you want to increase the support for lower back pain in the car, inflate it firmly, and when you want to use it as a back cushion or a light lumbar pillow, adjust the air appropriately to get a comfortable feel. [Ultra-lightweight & palm-sized at approximately 120g] It weighs less than two eggs, designed to be easy to carry. It doesn't take up much space when stowed in a bag or backpack as a car cushion, and you can quickly take it out during long drives, flights, or overnight bus trips. The big appeal is that you can achieve a fatigue-free seat anywhere. [Relaxation on the go] This lumbar pillow combines portability with comfort. It can be stored in a size that can be held in one hand, making it easy to carry and highly portable. When using it, you can easily adjust the inflation to your liking manually, without using your mouth, making it a convenient item. Whether on a plane during overseas travel, sightseeing during domestic travel, or on a long overnight bus, it provides relaxation to those suffering from lower back pain, making it a truly essential comfort item for travel. Lumbar Pillow Travel Backrest Ergonomic Freely Adjustable Fatigue Relief Long-distance Driving Posture Support With Storage Bag Convenient Goods Ultra-lightweight Foldable Travel Overseas Travel Car Airplane Shinkansen Overnight Bus Office Business Trip p251023.2425.0001