【Perfect Fit】The mop scrub brush head Attachment ONLY compatible with O cedar EasyWring 1-Tank spin mop system, designed for 1-Tank mop base and bucket. Not compatible with O-cedar 2-Tank RinseClean systems. | 【Dual Bristle Design】Full bristles for efficient cleaning, Outer stiff bristles remove stubborn stains and the 20°angled design makes it easier to clean edges and corners,Soft inner bristles lather easily for gentle deep clean. Saves time and effort! | 【Firm Fit & Long Lasting】Our upgraded scrub brush mop head are made of high quality plastic for durability and could hold your mop base securely in place and won't come loose. (Note: It may feel tight the first time you use it; It will become smooth after a few installations). | 【Versatile Triangular Brush】The unique triangular design can clean corners, Showers, Kitchens, Bathtubs, Windows, Walls, Pools,Patios and more! | 【Easy Install & Replace】Easily replace the mop replacement head in just a few seconds by aligning the base and pressing gently. Replacing the brush head regularly maintains optimal cleaning results.24/7 after-sales support, if you encounter any problems when using the product, we will be happy to help you.