Sold as Set of 4 Barn Roof Tin Universal Fit with Most Mason Jars Give your old mason jars a new purpose, fill with your favorite scented oil and screw on these lids. Place them all through out the house just like you would candles. Fits any jar with standard Mason jar threads. Features a long, thick wick that will burn for hours. Raise and lower the wick to adjust flame height. This is the lid only, jar and lamp oil are not included. Measures 3″ dia. and 2″ tall.