Perfect Fit for Agricultural Tractors – Designed for 70mm diameter fuel tank openings, compatible with most farm tractor models. · Durable & Weather-Resistant – Made from high-strength ABS / engineering plastic (可自行替换为实际材质), resistant to diesel, gasoline, UV rays, and cracking. · Secure Sealing – Built-in rubber gasket prevents fuel leakage, evaporation, and dust ingress. · Easy Grip Design – Ergonomic knurled surface for quick, tool-free tightening and loosening. · Replaces OEM Parts – Direct replacement for worn or lost caps; cost-effective and reliable.