This listing is for Hand Poured Birthday Number Candles. They can be purchased alone or as a pair. These candles have a large wick to make the candle virtually drip free. When burning in an ideal environment, you can burn these candles for 4 or 5 minuets without drips so you will have plenty of time to take pictures and sing Happy Birthday. Because all screens show colors differently, the colors in the listing may very a little form the real life candle. All other colored candles are made of paraffin wax. These candles are 2.75 inches in length.