Hex headed lambda blanking plug.
M18 x 1.5 thread pitch to suit most common lambda sensor fittings.
When running a car on the dyno a lambda sensor is necessary, at times these sensors are removed for on track use (or not allowed in your racing class), requiring a need for a blanking plug to retain exhaust gasses.
This blanking plug comes with a captured sealing washer which is heat resistant to extreme exhaust gas temps.
Sold each.
