Oil candle wick 3.2mm. It is a tighter weave 1/8" wick. This wick has a cotton outer layer over a fiberglass interior The cotton outside creates more absorbancy for a better pull of oil while the fiberglass interior does not burn away like cotton wick. This creates a longer lasting burn. This wick measures 3.2mm for a more exact measurement. Sold in a 5 foot section but if you order a larger quantity of wick it will be cut in one continuous piece. Select the wick length you need to order with the radio buttons.