Travel Trailer Jockey (1000 LBS) speaker "The GM400 Gunwale Mount is

"The GM400 Gunwale Mount is constructed of tough

designed for collision avoidance on boats and commercial vessels

Add even more bump to your boat by adding amplifiers to the front

The Marine Trailer Tube Mount Jack 7000 lbs is a heavy-duty boat trailer jack with a 7000 lb capacity

Output: 1000W continuous AC power from a 12V DC input — suitable for powering laptops

Travel Trailer Jockey (1000 LBS) speaker "The GM400 Gunwale Mount isThe Trailer Jockey features a smooth, comfortable, ergonomic design and proven reliability for long term use at rated load; swivel feature conveniently rotates jack up and out of the way when not in use.