I bought this for my new Jeep Gladiator and used it for the first two weeks of driving the truck on some trails in the Southwest. I'd never bled tires before, but I knew I had to do it to have better grip on the rocks and sand in Arizona. I read the instructions and used this Air Down Kit and it couldn't be easier. It only took me a few minutes to air all four tires with this kit and I felt like a pro which gave me a little confidence just before hitting the track.