The primary function of candle holders is to provide a secure and safe base for candles to avoid any mishaps. Placing a lighted candle without a sturdy base is like waiting for a disaster to happen. Even a slight push can cause the candle to fall over and the table cloth or curtains might catch fire. To prevent any unpleasant events, it is important to use glass candle holders beneath your open flames for extra safety and precaution. http://www.robingemstone.com/h....ousehold-supplies/ca