4. Cigars with a threshed blend filler and with an outer wrapper that has the normal colour of a cigar. The outer wrapper must be made of reconstituted tobacco and must cover the cigar in full, including where appropriate the filter, but not (in the case of cigars with a mouthpiece) the mouthpiece. If the filler is held together with a binder, the binder may be made of a material other than tobacco or reconstituted tobacco. Each cigar must have a unit weight of not less than 2.3 grams (excluding the weight of any filter or mouthpiece). The circumference over at least one third of the length of the cigar must not be less than 34 mm. A cigar containing only substances other than tobacco does not fall within this description.