These Schumacher front springs are factory replacement parts for the 1:12 Atom and Eclipse platform cars. Sold as a pair, they are metal coil springs in a white tuning rate for fine-tuning front suspension feel. The ultra designation indicates a specific spring rate within the Schumacher tuning range, allowing precise setup adjustments to match track conditions. Features: White tuning rate for front suspension Ultra spring rate designation Sold as a pair Metal coil construction 7/7/26 cs