The A-Maze-N Smokers Oval 12"-18" Expanding Tube Wood Pellet Smoker BBQ Grill is a large silver smoker tube with a 12-inch diameter and an expandable design. Manufactured in 2022, this reusable and easy-to-clean smoker tube is perfect for outdoor cooking and grilling. Made by the brand A-MAZE-N, this expandable smoker tube is designed to enhance your BBQ experience by providing a convenient and efficient way to smoke wood pellets. With a California Prop 65 warning, it is important to note that this product may contain chemicals known to cause cancer and birth defects.