The inside of the oil filter creates a strong high-temperature permanent magnetic field. During high-temperature and high-speed operation, engines naturally produce metal particles. Iron particles are very hard; if they circulate with the oil, they can enter the engine and increase wear. Magnetic technology helps capture iron particles from engine oil. Adsorption force: Niobium alloy magnetic steel generates a strong magnetic field that firmly captures small iron particles produced by the engine, preventing them from re-entering the system. Extend engine life: Oil filtered through the magnetic system contains fewer impurities, flows more smoothly, and reduces friction. This results in quieter and smoother engine performance. Purification of oil: Iron particles and harmful solid contaminants are captured within the oil filter. Even if maintenance intervals are extended, the oil remains clean and effective. Reduce consumption and improve environmental impact: Engine wear is significantly reduced, contributing to longer component life and reduced environmental impact. Maintains engine performance while supporting efficiency. Color: blue Material: high temperature environmentally friendly silicone Product length: 23cm Package Contents: 1 * Magnetizer Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture to vary slightly from the real thing. The measurement allowed error is +/- 1-3cm.