UI wheel and buttons properly termed constraint buttons. Wherever an intrinsic scale is present you can be sure constraint buttons are in the mix. Further more the circle or wheel design offers economy of design
Dribbble - dark_ui_dribbble.png by Johan Geijer
First upload. I didn't have anything on here so I figured I would put something up. This was done in vector.
Braun UI ~~ Set made out of Braun products made during the 60' by the legendary D.Rams
Knob by Derry Birkett
Controlled - GUi - Graphical User Interface
Big Switch by norm on dribble