These are Schumacher Racing Products factory replacement front springs for the Eclipse 6 1:12 scale pan car, rated at 0.55N/mm for a known, consistent spring rate. Sold as a pair, the springs are silver in color and designed to fit the Eclipse 6 shock absorber system directly. Choosing the correct spring rate is critical for tuning chassis response, and the labeled 0.55N/mm rating makes it straightforward to select and compare against other available rates. Features: 0.55N/mm spring rate Silver finish Sold as a pair Designed for the Schumacher Eclipse 6 7/7/26 cs