RYOBI introduces the Hard Bristle Brush Cleaning Kit (2-Piece). With tough bristles, these cleaning brushes are great for concrete, brick, and other heavy duty cleaning applications. The Hex Shank allows these cleaning brushes to be compatible with the RYOBI 4-Volt Cordless Compact Scrubber (P4400), RYOBI Brush Handle, Drill/Drivers, and 1/4 in. Impact Drivers. To learn more about RYOBI tools, go to RYOBItools.com and check out RYOBI Nation. Features: Compatible with RYOBI 4-Volt Cordless Compact Scrubber (P4400, not included) Works with most standard Drill/Drivers and 1/4 in. Impact Drivers Hard bristle stiffness optimized for concrete, brick, and other tough cleaning applications 2 in. Hard Bristle Nylon Brush ideal for concrete cleaning and provides easy access to tight spaces 3.5 in. Hard Bristle Nylon Brush ideal for cleaning larger surfaces areas Durable nylon bristles for extended brush life Ideal for removing stuck on grime and debris Warranty: Consumable product Includes: (1) A95HBK1 Hard Bristle Brush Cleaning Kit (2-Piece) with 1) 2 in. Hard Bristle Nylon Brush and (1) 3.5 in. Hard Bristle Nylon Brush