The Rubbermaid 1811031 Switchable Bristle Brush works with the Rubbermaid Sray Scrubber, Extendable Scrubber, and the 2-in-1 scrubber and is great for heavy-duty cleaning. The bristle head simply clips on and off the three different tools it works with. The Bristle brush head has durable, stiff bristles to make cleaning easier. Works with 3 different cleaning tools Will not scratch surfaces Helps breakup and remove buildup Constructed with durable yet lightweight material