Weird thingy when using building tools

[neviquatro (nevi)]

My friend randomly got this thing, he restarted studio and its still there, he disabled every plugin aswell but still there.

Any1 know what this is?

[sirjacoblol]

Pretty sure its a new beta feature roblox recently added.

[Crazedbrick1]

Go to File > Beta Features > Studio Draggers.