1.Rated up to 5,000 lbs of load-leveling capacity
2. Eliminates squat, trailer sway, rough ride and bottoming out
3.Burst presure for air springs: > 500 psi
4.One piece aluminum anodized end caps
5.20pcs Wires Carbon Steel Support Air Spring
6.5,000,000 Cycles Durability Test
7, 2-ply rubber design
8. Corrosion resistant roll plates
9. Power coated brackets
10, 8.8 Grade fasteners.
11. SAE Standard Air Hose and Fittings