Winbag15730 Air Wedge Alignment Tool, Inflatable Shim Size: 1Pack Model: 15730

This is an extremely well made product that will come in very useful in a variety of ways. I carry some in my truck and have them in my shop and house. I also carry one when I am walking. Some people with knee replacements find it very painful to KNEEL down to get up from a fall. Just inflate one of these, kneel on it and it gives you some cushioning.Bet ya never thought of that!In this world of poorly made and more-or-less useless stuff this is a GREAT product at a very reasonable price.