Reddit reviews Master Lock 2841AT Adjustable Height Zero Tilt Ball Mount
We found 1 Reddit comments about Master Lock 2841AT Adjustable Height Zero Tilt Ball Mount. Here are the top ones, ranked by their Reddit score.
Features a towing security deviceAdjustable from 20cm drop to 16cm riseIncludes one tool torque pinFeatures of 5,000 lb trailer and 500 lb tongueEasy to install
I don't know the kind, but it's simply an adjustable-height ball hitch, like this one. You position to the height you wish and run the two bolts through.
Ninja edit: Here's one that uses the same mounting bolt system, but with three ("That's 33% more free, order now and we'll double it!") different-sized balls.