Description: 【Part Number】: 01232023 【Material】: The firewall pass through for wiring harness is made of aluminum alloy, which is strong and wear resistant, ensuring long term performance and reliability 【Design】: The firewall pass through bulkhead wiring harness has 1.9 cm/0.75 inch holes and 2.8 cm/1.10 inch holes to meet different needs 【Easy to Install】: The firewall pass through for wiring harness consists of two halves that need to be bolted together. There are four holes around the perimeter which can be fixed to the vehicle with four bolts 【Convenient Usage】: The top half of the bracket can be removed, providing ample space for installing or removing wires. Simply bolt it together and reinstall the vehicle bracket bolts as needed Specification: Material: Aluminum Alloy Size Chart: 9.6 cmx5.4 cm/3.78 inchx2.13 inch Package Includes: 1 Set Firewall Pass Through for Wiring Harness Note: Please allow slightly errors 1-2cm differences due to manual measurement.