Description: The installation location:Fittings can be used simultaneously in left and right fuel rail The installation process:easy installation, just a few minutes. Benefits:Reduce the fuel pressure drop caused by restrictions on the raw material fuel rail fittings Fit for 2007.5-2012 6.7L Dodge Cummins Fit for 2004.5-2010 GM Duramax. Specification: Material: Stainless steel structure. Size: Approx 5CM*3CM*2CM/1.97x1.18x0.79 Inch Package Includes: 1 Piece Fuel Rail Plug Note: Please allow 0.5-1 inch difference due to manual measurement.(1 inch=2.54cm) Please check the size measurement and the picture carefully before making payment. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Please understand,Thank you