Excellent material: high-quality precision parts, high strength and durability, are fully loaded and safe for installation. Maintaining stability: the suspension leg provides a smoother ride and better shock absorption management. The spring seat is insulated from the spring to ensure a quiet and comfortable ride. Made of high quality material for durability and stability Pressure can be adjusted by springs or air (nitrogen); Operation of the coil-over springs and air cylinder is helpful to reduce the shock Product Description This suspension ensures a smoother ride and better shock absorption management. High performance: coil springs are heat treated and powder coated to ensure durability and corr sion protection, collision- and scratch-resistance. Standard specifications: designed and manufactured according to the original standard, it is easy to install, easy to use, economical and practical. Specification: 100% brand new!!! Main Color: Black and Silver Overall Length: about 21cm Pounds: 1500lb Distance Between Fixing Holes (Centre of Eye to Centre of Eye): about 19cm Diameter of Fixing Hole(s): about 0.9cm Width of Fixing Holes Sections (one side of the hole to the other): about 2.4cm Greatest Outer Diameter of Spring (approx.): about 4.5cm Spring Thickness: about 0.9cm Firmness: Soft to Medium Package included: 1 X Shock Absorber Note: This product is measured by hand and may have an error of 1-3cm, which is based on the actual product. Due to the screen and lighting configuration, the colors may be slightly darker or lighter.