Blue powder cost finish and constructed from high quality steel Limited lifetime warranty Optimum body diameter springs fit all standard hardware. These coil-over springs are part of Hyperco's optimum body diameter spring program. Buy Lime Green Man Loose Fit Vests Boat Neck Vest Tops for Man Sleeveless Track Gym Beach Casual Running Hawaiian Camisole Tank Tropical Fall Summer Vest 2025 Clothing 5XL at Aazon.co: HYPERCO 1810B0550 Blue 2.50 I.D. 10 Free Length Steel... Eibach 0400.300.0450S Eibach Coilover Springs Summit Racing The result is more deflection for the same free length and spring rate and less weight for the same free length and spring rate and increased rate linearity for the same free length and spring rate and more resistance to bowing. This Hyperco coil-over spring has a 2.50 inch inner diameter and a 12 inch free length and has 800 pounds spring rate. Great looking blue powder coat finish and made from high-quality steel. 12 inches overall free length 800 pounds spring rate 1812B095 Blue 2.50" I.D.12" Free Length Steel Coil-Over Spring