Material: The cold smoke generator is made of stainless steel for durability. Size: 20018050mm, please check first if it is the size you want. Also includes a cleaning brush. APPLICATIONS: Smoke coils in smokers, ideal for cold smoking a variety of foods such as salmon, sausage, duck breast, filet mignon, pork, chicken, cheese, fish, etc. suitable for most grills. Design: The surface of the generator is protected for better air circulation in the sawdust. Spiral shape, slow combustion, no flame, no external heat source, can be used for a long time. Usage: Easy to use, just put the smoking sawdust in spiral and light it with a lighter, tealight or sawdust lighter (not included). NOTE: Make sure sawdust is level and top of spiral is visible. Inexpensive: Use with various wood pellets such as cherry, pecan, mesquite, apple, pecan, beech, etc. With very little sawdust, it produces hours of smoke.