"warner 4" Flex Broad Knife Is Part Of Diy Series Light-Duty Putty Knife And Scraper Product Line, For Light-Duty Construction Or Home Projects. Carbon Steel Blade, Easy Spreading & Clean-Up. Rust-Resistant, Polypropylene Handle Resists Thinners & Solvents. Hard Rosewood-Colored Handles Are Laminated And Then Pressure Treated With Resin To Be Moisture Resistant. Provides A Flex With The Proper Stiffness To Handle Heavy Drywall Compounds. Use For First-Coat Applications.