Features: These copper engine oil crush washers are compatible with Audi/Volkswagen Part N0138157, suitable for oil changes and oil filter replacements. You can share your drain plug gaskets with people in need, and they will be very happy. Specifications: Material: copper Color: gold Size: Outside diameter: 0.7 inches/ 17.7 mm Inner diameter: 0.43 inches/ 11 mm Thickness: 0.13 inches/ 3.4 mm Package includes: 50 x Oil drain plug gasket Notes: Manual measurement, please allow slight errors on size. The color may exist a slight difference due to different screen displays. Swallowing risk may exist, please stay away from little kids. All the brand we mentioned just show products adaptability, not worked as trade mark use, our trademark is Mudder, kindly noted.