For all you grumpy old pharts out there who refuse to educate yourselves before spouting your opinions... (Wasn't it Grit Dog that said something akin to, "better to remain silent and be thought a fool, than to open one's mouth and remove all doubt" in another recent thread?)
The description of the ball adapter is, "Replacement 2-5/16" Adapter for Weigh Safe Hitch Ball with Built-In Scale."
So I went and looked at the Weigh Safe Hitch Ball With Built-In Scale.
This item here: https://www.etrailer.com/Hitch-Ball/Weigh-Safe/WSUN-1.html
Specs:
Ball diameter: 2"
2-5/16" Diameter with included adapter
Weight capacity: 10,000 lbs
Tongue weight capacity: 1,500 lbs
Shank diameter: 1"
The adapter is designed for full-time use on a ball that has a 1500lb tongue weight rating and a 10,000lb trailer weight capacity.
Being clamped INSIDE a trailer coupler, where's it gonna go? What's it gonna do? NOWHERE, and NOTHING are the correct answers.