Beeswax candles are the longest and cleanest burning wax amongst most wax candles. Beeswax also produces negative ions when burning. These ions help remove toxins, viruses, pollen, household odors, dust, mildew and molds from the air. Even the American Lung Association recommends the usage of these candles to help remove allergens and clean the air! Being naturally dripless and smokeless, beeswax candles tend to burn longer. However, burning these candles longer than four hours at a time may soften the wax a little too much. When relighting the candle, shorten the wick to 1/4" each time. Each candle may have its own color variation, depending on how long the wax remained in its hive, what plant the bees have pollinated, and the type of honey is made from the hive, making each candle one of a kind. These tealight candles are hand poured, one at a time. They measure 1 1/2" diameter and stand 3/4" tall. All candles use a 100% cotton wick, and they are guaranteed to be lead-free.