A cigarette (French "small cigar", from cigar + -ette) is a product consumed through smoking and manufactured out of cured and finely cut tobacco leaves and reconstituted tobacco, often combined with other additives,[1] then rolled or stuffed into a paper-wrapped cylinder (generally less than 120 mm in length and 10 mm in diameter). The cigarette is ignited at one end and allowed to smoulder for the purpose of inhalation of its smoke from the other (usually filtered) end, which is inserted in the mouth. They are sometimes smoked with a cigarette holder. The term cigarette, as commonly used, refers to a tobacco cigarette but can apply to similar devices containing other herbs, such as cannabis.
Brands?
You've got hundreds of cigarette brands, the most famous one: Marlboro. The producing is in the hands of the big four producers. A list of the different brands.
Sizes
Cigarettes you can get in different sizes. The most regular one is the 75mm. But you have 100mm (like the Marlboro 100's)
the 120mm (like the Virgina Slim 120's)
and you got the 164mm ones (very exceptional)
More information about the 120mm cigarettes and the 164mm cigarettes you find here!
Cork and White?
Cork cigarettes are cigarettes with a brown filter, white cigarettes are cigarettes with a non colored filter.
Also check the cigarettespedia!