Have you ever wished that you just had a few more feet of DC electrical cord. Wagan Tech has the answer, the 12V/24V DC Socket Extension. It works with all 12V and 24V electrical systems, so it will surely fit your application and needs. With its weatherproof rubber cover and generous 3.7m cord, the 12V/24V DC Socket Extension is one valuable yet inexpensive investment for your outdoor lifestyle. Ever wanted to have 12V power int he back of the car. Here is your solution. Inflatable Air Mattresses, sporting balls, and tyre inflators are now accessible outside of the car. With a 15A Replaceable fuse and 18 AWG Cable, it's ready to handle your heavy power needs all day long. Perfect for extending the car's DC power plug to the trunk and beyond. The 12V/24V DC Socket Extension is capable of being mounted with the supplied threaded nut to nearly any flat surface including a truck bed, vehicle dashboard, or panel. The required minimum diameter of the hole is 1-1/4 (31.75mm) with a maximum material thickness of 7/16 (11mm).