The first Volas Inflatable Lumbar Reliever, Adjustable Air Bag Waist Support Plate to Relieve Lumbar Disc and Waist Stretching Artifact Wholesale image file does not show a product. The next photo is a white arched plate with a raised middle and small nubs.
That usable photo is what this guide uses. Colour options are still Gray and Blue on the page. Do not invent a pump from this still image.
Look at the Volas lumbar images.