Patinated brass slip ring, M10 (or, the inner diameter is 1.0 cm / 0.39 inch).
What can you do with this? Slide the ring over the adjusting pipe / rod of the lamp, until the ceiling cap is tight against the ceiling. Tighten the screw. So Easy!
Interne diameter: 1.0 cm
|Inner Diameter (cm):||1.0 , M10 (0.39 inch)|
|Outer Diameter (cm):||1.3 (0.5 inch)|
|Heigth (cm):||0.9 (0.35 inch)|