Designed for cars, minivans, light trucks, RVs and SUV's that have coil springs. Control the air pressure in the air helper springs for varying loads and road conditions. Spring performance can be altered as easily as inflating a tire. Made of durable, elastic polyurethane.Per set (not to exceed vehicle's GVWR). The item "LANDCRUISER 200 SERIES HD HP FIRESTONE COIL AIR BAG SUSPENSION SPRING ASSIST KIT" is in sale since Tuesday, August 8, 2017. This item is in the category "Vehicle Parts & Accessories\Car & Truck Parts\Suspension, Steering\Coil Springs". The seller is "ozautoparts" and is located in Melbourne. This item can be shipped worldwide.