Home Interiors Brand Discover The Ultimate Candle Burning Experience Unique Candle Cappers ( set of 2 ) for jar candles Minimizes soot on the candle container Reduces tunneling for maximum burning Decorative and functional for superior value Candle Cappers allow fresh air to enter through the vent holes while heated air escapes via the larger opening in the center This special process creates a more uniform burn Each capper is approx: 3 1/2 inch diameter Made of metal Thanks for looking