The GrillKicker is a small smoke generator that sits on the surface of any BBQ grill or smoker and puts out lots of BBQ flavored smoke. A single 100% real wood cartridge will fill your bbq grill or smoker with 15 to 30 minutes of natural smoke. Perfect for adding real bbq flavor to burgers, steaks, fish cutlets, or anything on your gas, electric, or charcoal grill. Perfect for hot or cold smoking. Includes 2 cartridges.