The new patent pending twin Air Jack Air Wedge is the best car opening invention in years. This is a natural evolution from the traditional single bladder Air Wedge. The Twin Air Jack wedge provides a more balanced, even clearance for inserting a long reach tool while avoiding too much stress on a single point of the door. Since the pressure is evenly distributed you can do your work damage free. The Air Jack from Access Tools is the industries best. The bladder is made out of ballistic nylon, not rubber, which is important because rubber stretches, while the nylon won't. To further aid insertion, there is a built in stiffener that prevents the wedge from bending when you insert it.