These remote jumper battery junction bulkheads from Aeroflow Performance are designed for remote access to jump start or charge the battery. This is handy for batteries that are inaccessible and require convenient easy to reach access. The thru frame bulkhead will mount through a firewall or similar panel. The bulkhead is made from Bakelite insulation material and suits a 1-1/4 hole for mounting. This kit includes one Positive (red) and one Negative (black) terminal block with 3/8 studs that allows for the connection of battery cables through a bulkhead. Both the jumper connections feature a rubber isolator dust cap that can be placed over the terminal for protection.