Fitment: Fit for most brands of bellows-style air springs, fit for Air Lift’s load lifter 5000 series and load lifter 7500 XL. Available in 2” / 4” / 6” straight and 4” angled. This one is 2” straight Features: 1) Built With A Unique Spiral High-Grade Steel. black surface treatment prevents rust effectively. Key suspension components have been tested. Can withstand a weight of more than 10 T.To ensure the highest quality .