Seneca Menthol 100 Box cigarettes are a menthol-flavored tobacco product sold in a hard box (flip-top) format. The 100s designation refers to the longer 100mm cigarette length, which provides a slightly longer smoke compared to regular (king) size cigarettes.

The Costco pack configuration includes 10 cartons of 20 packs (10CT 20PK), making it a bulk warehouse purchase. Seneca is a value-priced cigarette brand commonly sold at warehouse clubs and tobacco retailers. The menthol variety delivers a cool, minty sensation alongside the tobacco flavor.