Vapor4Life has a strong internet presence but my experience with their cartomizers has been awful. The sampler pack that I bought at a discount contained 1 blank dud which explained the discount price. Other cartomizers chosen from their huge selection of flavors (161) have performed very poorly. Duds that expired prematurely, got extremely hot after a few puffs and had airflow issues were routinely encountered. The $7 shipping charge is INSULTING. They appear to be drowning in inventory after merging with other vendors. STAY AWAY FROM THIS D1 TURKEY and choose from a huge selection of much better D1 brands here.