This product is a set of 4 copper M14 engine/transmission oil drain plug gaskets/sump plug washers. The gaskets have a thickness of 1.5mm and an interior diameter of 14mm. They are made from copper and originate from China. These high-quality gaskets are designed to provide a secure seal for the oil drain plug, ensuring a leak-free operation for your vehicle's engine or transmission. Ideal for car enthusiasts and mechanics looking for reliable sealing solutions.