Material: copper alloy
Inner diameter: 0.43 inches=11 millimeters
Outer diameter: 0.69 inches=17.7 millimeters
Thickness: 0.13in=3.4mm

What will you get in the box?
-20 x oil drain plug washer

Our product advantages:
-Made of high-quality materials, the surface is smooth and wear-resistant
-Can ensure long-term use in harsh environments such as high temperatures and cold weather, durable and long-lasting
-Through professional design, it can provide a tight and reliable seal to avoid leakage every time you change oil, ensuring the best performance of your oil pad
-Reducing the risk of oil leakage, ensuring the safety of your engine, high conductivity, and providing protection and stability