10Pcs Aluminum Alloy Engine Oil Crush Washers Drain Plug Gaskets 18mm ID. 25.5mm OD. for Car Condition: 100% new Color: Silver Material: Aluminum Alloy Outside Diameter: approx.2.55 cm(1 inch) Inside Diameter: approx.1.8 cm(0.71 inch) Item included: 10 x oil crush washers Suitable for: oil changes and oil filter replacements Compatible With: fit for most of car This Is Aftermarket Replacement Item But Not Genuine Note:1) All dimensions are measured by hand, there may be small deviations.2) Color may vary slightly due to the color setting of each individual monitor. Product Dimension: Feature: 1) Follow the original factory specifications. 2) Aluminum alloy automatic transmission fluid drain plug crush washer seal. 3) Easy installation. 4) Ensuring proper fit with the drain plug and creating a tight seal. 5) Durable and reliable.