For the most challenging terrain the all-new 2.5 PRO-VST SERIES shocks are the PRO's choice. These new shocks are built to endure off-road carnage while providing lasting damping performance. Designed for maximum off-road capability, the 2.5 PRO-VST Monotube Shocks and Coilovers are constructed with a hard-anodized thick wall impact forged body. The robust 2.5" shock body on the PRO-VST allows for maximum damping capacity. The hard-anodizing reduces friction and bore wear inside the shock-body. Featuring 17-4 PH stainless steel precipitation hardened shafts that are chrome plated for maximum corrosion and abrasion resistance. With Vehicle Specific Tuning (VST), Pro Comp PRO-VST shocks are specifically tuned for maximum ride quality on-road and pro performance off-road!"