Candle will burn about 120 hrs 2 1/2″ wide and 8″ tall. Clean burning, cotton wick. Blue candles can be used for a variety of needs. Burn a 7 Day Blue Candle for truth, health, inspiration, wisdom, immortality, loyalty, serenity, sincerity, devotion, kindness, patience, fidelity, honesty, peace and harmony in the home. Sold as a curio and as a tool to aid in your prayers and/or rituals.