Material: The fuel hose is made of high-quality plastic. The hose has good resistance to corrosion, oxidation, wear, and high temperatures. Size: The fuel hose kit includes four sizes. They are (inner diameter x outer diameter): 3 mm * 6 mm (0.12 * 0.24 inch), 3 mm * 5 mm (0.12 * 0.2 inch), 2.5 mm * 5 mm (0.1 * 0.2 inch), 2 mm * 3.5 mm (0.08 * 0.14 inch) )) diameter of. Each size is 1.5 meters (59 inches) long. Widely Used: The fuel hose is suitable for gasoline and engine oil and is suitable for ordinary small engines, motorcycles, motorboats, and lawnmowers. Easy to Install: The fuel line can be easily installed without additional adjustments. Clean and fast flow to ensure a constant flow rate when the engine is running. Easy to Use: The fuel hose kit contains 4 translucent yellow hoses. There are 4 different hose sizes. If the hose is too long, it can be cut as needed to ensure the engine runs normally.