The Race Ramps Flatstopper Ramps RR-FS are a set of lightweight and durable ramps designed to prevent flat spots on tires during long periods of storage. These ramps are made from a high-density foam material that is strong enough to support vehicles up to 6,000 pounds. The ramps have a gentle incline and a flat surface, making them perfect for use with low-profile and sports cars. They also feature a non-slip coating on the bottom to ensure stability and safety. These ramps are ideal for car enthusiasts, collectors, and anyone looking to protect their tires during storage.