Enhance the performance of your HPI Racing model vehicle with this high-quality Clutch Spring Set. It includes three springs with different sizes of 0.8mm, 0.9mm, and 1.0mm to choose from. These springs are designed to provide optimal suspension and steering for your vehicle, ensuring a smoother and more stable ride. Made specifically for HPI Racing models, these springs are a perfect fit for your vehicle. They are easy to install and provide a great upgrade for your suspension system. With this Clutch Spring Set, you can improve the handling and overall performance of your HPI Racing model vehicle.