Select the diameter you require then choose the length desired from the drop down list of choices for each. Burn times and pack quantities are displayed and will vary according to length chosen.
Candles with a diameter of 40 mm or more should burn over a considerable time so that the wax becomes liquid up to the edge of the candle. Otherwise, a wax wall will be formed around the wick impairing the flame. If a wick needs shortening trim to approximately 1,5cm. Never leave burning candles unattended.