The larger portable lumbar support has been created to allow you to take your seating comfort with you wherever you go.The adjustable webbing strap with clip buckle allows you to attach it to whichever seat you happen to be in.The lumbar support is inflated and deflated with the hand pump bulb in just a few seconds.Made from superior materials including a layer of memory foam as standard.Width of cushion 30 cm Height of cushion 15 cm