The spiral twist pillar has a rope that swirls it way to the top. An excellent choice for length of burn. I have yet to test how long it lasts but it must exceed 60 hours and possibly longer due to it's height.
My beeswax is always 100% pure rendered. Beeswax burns longer and brighter than regular petroleum candles, hypoallergenic, and non-toxic. Make sure to trim your wick to 1/4 inch at the beginning and at each new lighting. With pillar candles, make sure to burn for 3 - 5 hours so it burns to the edge. That avoids a tunneling effect. If you encounter tunneling, push the warm wax inwards towards the center.