High-quality rubber blades reinvigorate your ErgoTec™ Squeegee (sold separately). Precise sizing ensures optimal results. Slip-out, slip-in design enables quick and easy installation. Straight. Blade Material: Rubber; Blade Width: 18"; Blade Color: Black; For Use With: Unger® ES450, GC450, GS450, NE450, PR440.Package Includes: Includes 12 squeegee replacement blades