Unger's 4" Stainless Steel Replacement Blades are engineered to meet the rigorous demands of professional window cleaners and maintenance personnel. Crafted from rust-resistant stainless steel, these blades offer longevity and maintain sharpness, effectively removing stubborn substances like paint, stickers, and caked-on dirt. Each blade features a dual-edge design: a sharp side for tackling resilient materials and a blunt side for more delicate surfaces, providing versatility across different cleaning scenarios. Packaged in a convenient dispenser, they allow for safe storage and easy access, promoting efficiency and safety during operations