The Skyjacker Nitro Shock Series - for both moderate and extreme off-road conditions. These hardcore shocks feature 150 PSI pressurized nitrogen gas, twin-tube construction, red polyurethane bushings, and much more! With true velocity sensitive valving, the Nitro gives a stable and controlled ride. Both durable and long-lasting, these shocks deliver consistently and have a limited lifetime warranty. You can't go wrong with a Skyjacker Nitro Shock - they really go the distance!!