C&H Tea Light Candle made of Paraffin wax is hard ad will not collapse easily. With a long burning time of 4.5 hours, this is a value product for your money. These candles are designed to burn without any dripping. This feature reduces the chance of accidents or unnecessary wax removal from the surfaces. These candles will not give off toxic compounds in high volumes. This ensures a healthy environment for your home, office ad shops. The size of the flame is big enough to give enough light. However, it does not emit soot in large amount. This prevents darkening of ceiling & walls.