Feature: 1. Shockproof Base: Constructed with heavy duty forged steel frame and high performance spring suspension, ensuring stability and durability. Long term use without damage or breakage. 2. Dust Proof Cover Design: Equipped with dust cover on all four sides to prevent dust, dirt, and debris from entering the base, protecting internal springs and components for extended lifespan. 3. Enhanced Comfort: Convert your seat into a shock absorbing seat to reduce vehicle bumps and vibrations during travel. Provides a more comfortable riding experience, reducing pressure and fatigue. 4. Customized Positioning: With damping locking handle, easily switch between shock absorbing and fixed seat mode. Sliding rails allow 120mm forward or backward movement for customized positioning. 5. Easy Installation: Suitable for various large vehicles including trucks, RVs, commercial vehicles, construction vehicles, and agricultural machinery. Ideal solution for seat modification. Specification: Item Type: Seat Shock Absorbing Base Material: Forged Steel + Rubber Shock Absorption Stroke: Approx. ±30mm / 1.18in Damping Lock: Can lock the shock absorption Slider: Can slide forward or backward by Approx. 120mm / 4.72in Application: Transform your seat into a shock absorbing seat, reducing bumps and vibrations during vehicle travel for a more comfortable experience, reducing pressure and fatigue on passengers and drivers' bodies Fitment: Ideal solution for seat modification, easily install on various large vehicles including trucks, RVs, commercial vehicles, construction vehicles, agricultural machinery Installation Instructions: 1. Confirm your installation position and clean the surface 2. Measure dimensions and make holes at the installation position 3. Secure the seat base to the floor (fixing holes on the slider), and connect the air tank joint to the base's air nozzle 4. Install your seat on the base and secure with screws to complete installation. Package List: 1 x Seat Shock Absorbing Base Note: 1.Air shock requires a stable air source, installation requires the air tank link head to the air nozzle on the base;2.Installation requires drilling, we strongly recommend finding a professional mechanic to do the installation to ensure the best shopping experience!