Forget The Tube Smokers The New Smoke Ring - Circum = 25" or 16.5" Smoker 100% USA Made Heavy duty .063 - 304 Stainless Steel; will not rust or decompose over time Add high quality smoke to any bbq grill or smoker 8" diameter circle = 25" Circumference or flip it over for 16.5" for a longer or shorter smoking session Designed to provide max amount of airflow facilitating a lasting burn 100% Made In the U.S.A.