Zinsser brand is known for professional-quality, problem-solving products that make the job easy and get it done right. Easily swap dull blades for sharps with the Rust-Oleum Zinsser SoftGrip Snap-Off Knife. This tool features a strong, stainless-steel blade track for extra leverage while cutting, plus patented, cushioned, non-slip grips and finger-rests for steady cuts.