Adjustable Triple Ball Hitch Mount Trailer Jacks It seals tight to keep

It seals tight to keep water out (it has a rubber gasket to make it water-tight)

Boat Size :  40' - 50'

you can set the speaker at the ideal angle to direct the sound precisely where you want it

2 metre cable

Adjustable Triple Ball Hitch Mount Trailer Jacks It seals tight to keepAdjustable Tri Ball Trailer Hitch Ball Mount is a receiver hitch accessory consisting of three trailer hitch balls and a shank. It provides three permanently affixed hitch ball sizes: 1 7 8" (Capacity 3500 lbs), 2" (Capacity 5000 lbs), and 50 MM (Capacity 5000 lbs) eliminating the need to remove and install different hitch balls or ball mounts. The adjustable ball mount allows you to drop or rise the tri ball mount by 5 3 4 in. (an 11 1 2 in. height