In the picture there is a cigarette of the optimal size, in a cigarette holder. Note that the cigarette goes a centimeter or so inside the holder. The paper used was a roll of Smoking Black. The paper is so thin that the tobacco can be seen through the paper. Standard Rizla paper pack is added for scale.
Unfortunately no-one manufactures ready-cut papers of the optimal size. All papers are either too short or too long. Hence, a roll, where you can cut the length of paper you want, is the best alternative.