Oliva • Nub MaduroThe underlying theory behind the Nub is that a cigar finds the sweetest spot at the 3 1 2 4 inch spot. All Nub cigars fall within the 4 inch mark. They also have a ring gauge between 56 64, which means each Nub delivers an amount of tobacco equal to any Churchill or even Presidente. And, you will find they smoke as long. A chart revealed by Olivia indicates that the expected burn times for these cigars range from 38 minutes to an amazing 74 minutes.