Our engine cleaning brushes are designed to effectively remove carbon deposits from your car's These brushes are suitable for cleaning the combustion chamber and cylinder, ensuring optimal engine performance. Features -Color:Black -Material:Nylon -Size:27.50X3.00X3.00cm/10.81X1.18X1.18in -High efficiency carbon removal: utilizes advanced cylinder brush technology to quickly and effectively remove carbon deposits from your car engine, enhancing performance -Solve engine carbon issues: carbon deposits are a major cause of reduced engine performance and increased fuel consumption; this product thoroughly addresses these issues -Wide application range: suitable for various car engines, whether small, medium, or large vehicles, ensuring effective carbon removal across different engine types -Easy to use: simply insert the brush into the engine, start the engine, and the brush will automatically clean the carbon deposits, making the process simple and convenient -Extend engine lifespan: removing carbon deposits reduces engine wear and tear, prolonging the engine's lifespan Package list: 2 x carbon dirt cleaning brush