2 Size Fruit jar to Oil Lamp Adapter w/Antique Finish Mason jar to oil lamp adapter with special antique brass finish & cotton wick. Comes with e-plated #2 antique brass finish burner and 2-3/4" I.D. antique brass finish collar. E-plating is a durable finish that does not require the use of environmentally unfriendly chemicals. Accepts all 3" base dia. chimneys.