The oil bottles are 3.25 inches long and made of translucent plastic. They are sold in sets with wicks and wick holders. The wick holders are made of two parts: a heat resistant glass piece that holds the wick and blocks the heat of the flame from reaching a plastic piece that holds the glass piece. The wick is made of fiberglass and is a lifetime wick... it does not have to be replaced.

ALL Candlefun molds can accept the oil bottles. The bottles can hold enough oil for about 4 to 6 hours of light. Smokeless, odorless candle oil should be used with the oil bottles.