Bilstein B6 4600 shock absorbers are designed as a direct fit upgrade to OE shock absorbers on stock height light trucks and SUV’s. These shock absorbers feature a monotube design which provides consistent fade free performance. B6 4600 shock absorbers utilize a unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B6 4600 shock absorbers are tuned for each specific application to ensure optimal performance is achieved. B6 4600 shock absorbers offer a significant improvement in ride quality, handling, and comfort.46mm Monotube Shock AbsorberB6 4600 - Suspension Shock AbsorberAdjustable Damping: Non-AdjustableBoot Included: Blue StraightCalifornia Proposition 65: WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.govFinish: Yellow PaintInternal Design: MonotubeLower Mount Type: Eye 12.7mmReservoir: NoSeries: B6 4600Spring Seat Included: NoTitle: Bilstein Shock AbsorbersUpper Mount Type: Eye 16mm