(Size) Cushion body approx. 11.0 x 7.1 inches (28 x 18 cm); Weight: approx. 4.2 oz (120 g); Black; The compact and expandable design of the air lumbar support inflatable cushion pillow is ergonomically designed to support your lower back and reduce back pain and discomfort. (1) The inflatable design allows it to be stored compactly, so you can easily carry it on the go. It can be inflated when using, and when you carry it out, it can be folded into a small size, so you can use it at the office or when traveling. (1) Made of breathable mesh material, it can be washed if it gets dirty, so you can always use it clean. It can also be used by those who drive their car. It provides great support for your body from regular to long drives. For those who suffer from back pain or back pain, you can adjust the thickness of the air to your preference by manual air adjustment, so you can expect it to reduce the burden on your lower back and back. There is a Velcro tape on the back side, just stick it on. Note: There is no instruction manual (English language not guaranteed), so please check the images for yourself. If you fill it with more than necessary, it may cause it to burst. Please inflate it with moderate air.