Land Rover Defender/Series/Perentie Mirror Arm Large 11.5 PAIR RRC8443. Land Rover Defender/Perentie/Series 3 Extra Long Mirror Arm. If you do towing or have a wider rear box etc, then these extra long arms are just what you need. They are a simple swop for the standard ones, and you can use the same mirror head.The item "Land Rover Defender/Series/Perentie Mirror Arm Large 11.5 PAIR RRC8443" is in sale since Tuesday, June 21, 2016. This item is in the category "Vehicle Parts & Accessories\Car & Truck Parts\Exterior\Exterior Door Panels & Frames". The seller is "landybitzau" and is located in Coomera. This item can be shipped worldwide.