Made from aluminized steel for durability, Walker bendable straight tubing utilizes an innovative cutting process to produce quality straight tubing in a variety of finishes, diameters and gauges to meet any installation requirements. Product Features:RESISTS CORROSION -- Durable aluminized steel construction for corrosion resistance and performanceAVAILABLE IN DIFFERENT SIZES -- Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) - Outlet Diameter (O.D.) connection; see product specifications for more informationBETTER TOGETHER -- Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgradePREMIUM MATERIALS--Manufactured with high-quality materials using an innovative distortion-free tube cutting processCOMPATIBILITY -- Ideal for weld or clamp installations