RBX.lua.JointInstance (Object)
From Legacy Roblox Wiki
Preliminary:This item is under development and is likely to change. Use only for experimental work.
The JointInstance object is a Base Object. It is used to hold all of the methods, properties and events of Connectors, Welds, Snaps, etc..
Functions
The JointInstance object incorporates only the global functions.
Properties
In addition to the global properties, the JointInstance object also has these:
Events
The JointInstance object incorporates only the global events.