Spin Mop Base Scrub Brush The stiff bristle scrubbing brush is constructed from PP material. The bristles can reach into recesses and grout lines, allowing you to clean tubs, tiles, areas around toilets, decking, and stubborn dirt on floor tiles. Ergonomic DesignThe Tub Tile Scrubber Brush boasts a 180-degree swivel design, making it easy to clean soap scum without the need to bend over or stand directly above it. This design is especially convenient for individuals dealing with back or knee issues while cleaning. Built To Last The stiff bristle scrubbing brush is constructed from PP material, It is durable, saving you time. After use, simply rinse the replaceable heads with water. Perfect Fit With a simple snap-fit installation,the dimensions are 5.9" in diameter and 5.9" in diameter on the outer triangular side,our special design gives you more stability when installing and cleaning,please note that the Mop Base Brush is not compatible with the 2-tank system,Fits perfectly with 1 can mop system. Purchase NotesPackage only comes with 1 scrub brush for Ocedar spin mop, This is just a part of the accessory, ONLY compatible with o cedar spin mop 1 tank system, please use it in combination with the spin mop head.