Usage Tips:1\u3001Multi-purpose, lumbar pillow, leg cushion, pillow, with it, you can relax better in your leisure time at work, it can be reliable and cushioned, both beautiful and generous.\r 2\u3001Large diameter, easy to inflate, with a non- valve to prevent air backflow when blowing, faster and more labor-saving inflating, the reverse valve is specially designed for mouth blowing. It only takes half or half a minute to breathe, and the air valve can quickly inflate.\r 3\u3001Lightweight and portable, size after inflation: 40*35*12cm\/175*178*72in, size after frustrated storage: 14*6cm\/5*36in, only the size of a mobile phone, compact and portable, you can put it in your pocket and put it in your pocket take away.\r 4\u3001Fully ergonomic design, 75\u0026deg; streamlined design, keep the spine S curve more comfortable, when you inflate it to any pressure and size you need, it will fit your back perfectly.\r 5\u3001Adjustable: It is suitable for any chair because it is equipped with adjustable double shoulder straps to provide adjustment space. It is not bulky and non-adjustable like most back supports, making it difficult to use and carry. You will fall in love with our lumbar support pillows, which are not only suitable for offices and cars, but also suitable for use on airplanes. Help you and your child prevent muscle fatigue and back strain, allowing you to sit comfortably without any pain.1*Inflatable waist pillow1*Storage bagMaterial: PVC flockingInflated size: about 40*35*12cm\/15.75*13.78*4.72inStored size: about 14*6cm\/5.5*2.36inWeight: about 150g