RBX.lua.ROOT (Object)
From Legacy Roblox Wiki
Uncreatable:This object cannot be created with the Instance.new function.
Note:The actual name should be <<<ROOT>>>, but it had to be "ROOT" because the wiki doesn't support the < and > symbols in titles.
Derived Classes
NoneThe base class for every Instance. This class has no members. Note that, unlike other classes, three "<" and ">" symbols surround the name.