Zesty citruses dance with tangy red berries, while the fresh scent of pine balsam waltzes in. 10 Cones Per Pack. - Each 2-inch cone is crafted from high-quality charcoal and hand-dipped in premium grade fragrance oils for 48 hours. - They burn for approximately 30 to 40 minutes, emitting a clean, premium aroma without toxic fumes or smoky residue. - Charcoal cones offer cleaner burning compared to wooden cones, providing a more authentic scent profile when ignited. They also produce less smoke than wooden cones, releasing delicate fragrances that capture the essence of each scent perfectly. The fragrance is cleaner and truer due to the charcoal being previously burned. - The aroma from a backflow incense cone can last up to 1 day, and they have a vertical hole from top to bottom so that smoke can get pulled down into the burner. Topflow incense cones do not have a hole in them therefore, they can't create the smoke waterfall effect like backflow incense cones.