Feature:1. Adjustable Damping and Front Handle: The seat suspension base can easily adjust damping for a comfortable ride on rough roads or with different passenger weights. The front handle allows convenient adjustment.2. Sturdy Construction: The seat suspension damping base is made of heavy duty forged steel and rubber materials, ensuring durability and long lasting use without easy damage or breakage.3. Dustproof Design: The mechanical seat suspension base is equipped with dustproof rubber covers on all four sides to prevent debris and dust from entering the base, protecting internal parts and enhancing longevity.4. Enhanced Comfort: Transform your seat into a shock absorbing seat to reduce vehicle vibrations and provide a more comfortable riding experience, reducing stress and fatigue on passengers and drivers.5. Easy Installation and Versatile: The mechanical seat damping base is suitable for various large vehicles including trucks, RVs, commercial vehicles, construction vehicles, and agricultural machinery, providing an excellent solution for seat modification, easy to install.Specification:Item Type: Heavy Duty Seat Suspension Base Material: Forged Steel, RubberDamping Adjustment: Clockwise Release Spring, Counterclockwise Compress SpringSlider Distance: Approx. 125mm / 4.92inApplication: Transform your seat into a shock absorbing seat, reducing vehicle bumps and vibrations, providing a more comfortable riding experience, and reducing pressure and fatigue on passengers and drivers' bodiesFitment: Suitable for Trucks, RVs, Commercial Vehicles, Construction Vehicles, Agricultural MachineryInstallation Instructions:Step 1: Confirm your installation location and clean itStep 2: Measure sizes and drill holes at the installation locationStep 3: Secure the seat base to the floorStep 4: Install your seat on the base and secure with screws.Package List:1 x Heavy Duty Seat Suspension BaseNote:Installation requires drilling and a professional mechanic is strongly recommended to assist in the installation to ensure the best shopping experience.