These CDN 12 150mm tall wicks are manufactured by a company reputed to make the best wicks in the world. Be the best because you use the best The wick tabs are made from 0.254mm thick tin coated steel. This helps to inhibit corrosion making it preferable to plain steel. The heavier metal ensures it remains strong while being crimped to stabilize the unit.The tab on these wicks is 15mm in diameter with a neck height of 10mm to allow increased safety for your candles. The CDN wicks are coreless, non directional, flat braided wicks with a special paper filament woven around them which makes them well suited to the vegetable based waxes such as soy and palm. This wick is designed to promote consistent maximum capillary action while ensuring a wick trimming flame posture.MADE IN THE USA Tab Diameter 15mmTab Overall height 10mmWick Total Height 150mm Estimated consumption of 6.2gm per hourEstimated flame height 55mmEstimated pool diameter 61mm Results may vary depending upon blend, color, fragrance, wax and shape/size of container.