Made of aluminium alloy, durable and safe. Fine workmanship and perfect style. The engine hood riser suit for 6mm aperture. You can make car modification with these parts, that will be a interesting thing! Features - Material: Aluminium Alloy. - spacer riser kit is manufactured from aluminum alloy, it is characterized by its high hardness and durable. - In screws with nuts, the function of the spacer is to increase the area, reduce the pressure and protect the parts and screws. - The spacers provide better cooling and airflow effect for all your motor or applications. Stable and reliable performance. - Standard size, the diameter of the screw is 6mm/0.2in. Perfectly suitable for large motor swaps for an additional space to allow adequate . - Strong and durable finish, clean and bright appearance, no rust, no fading. Package list: 4 x aluminium hood spacer risers 4 x screws 4 x gaskets