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Finish: Polished & Lacquered
Center Hole: 2-13/16"
Fits some Rayo burners
Lampshade Ring Holdersprovide sturdy support for 10" student lamp shades. Shade ring is heavy gauge brass with tripod arms.2-11/16" center ring sits down on burner, fitting snugly inside lamp burner prongs. Fits most #2 brass-plated oil or electric burners. Fits some Rayo burners
Select according to center ring diameter. To determine appropriate size: measure outside diameter of burner ridge, where chimney sits.