Wholesale Lot of 4 Mason Jar Oil Lamp Burners -Convert your Mason Jars into Unique Oil Lamp conversation pieces! This d lot is for 4 brand new Mason Jar oil lamp burner / chimney holders.These brand new Oil Lamp Burners feature bright brass plated finish, 15cm long x 1.9cm wide cotton wick and adjusting knob on the side.Each burner comes completely assembled with a 5.1cm - 1.9cm inside diameter Mason Jar Lid that fits regular width mason jars.These burners hold standard 7.6cm dia.bottom fitter glass chimneys.The mounting collar fits regular mouth Mason Jars and is 5.1cm - 1.9cm inside diameter.The bottom collar can also unscrew if needed (see last picture above) and when you take off that collar you have male threads 2.5cm - 0.5cm in diameter.These burners also feature a side knob to raise or lower the wick to desired level.