[Perfect Compatibility]: The replacement base frosted brush measures 5.9 x 5.9 inches, matching the size and design of the original. This floor scrub brush is compatible with the Spin EasyWring 1-Tank system mop bucket and mop base. Note: The spin scrubber brush is only compatible with the 1-Tank system and is not suitable for the RinseClean 2-Tank system. [High-Quality Brush]: This floor scrub brush features high-quality nylon bristles that are firm and resistant to deformation. The bristles are moderately soft yet strong, providing effective cleaning without damaging your floors. Ideal for tile and hard floor surfaces. [Easy Installation and Use]: Installing the scrubbing mop hard bristle brush is simple. Insert the triangular mop base into the hard bristle brush and press firmly until you hear a "click" to secure. The round triangular design allows easy access to corners and tight spaces, enhancing cleaning efficiency. [Reusable]: The mop replaceable scrub brush head is reusable. The durable floor brush consists of three layers of firm bristles designed to remove stubborn stains, clean kitchen walls, and sinks. After use, rinse thoroughly under running water and air dry in a cool place to extend its lifespan. [Floor Cleaning Brush]: The tub tile scrubber brush features a 180-degree rotating triangular design, ideal for removing soap scum from tile surfaces, tackling tough stains in the kitchen, and cleaning around the toilet. This scrub brush is effective on various hard floor surfaces, including bathrooms, tiles, walls, kitchens, sinks, and toilets. Color: Red Material: Plastic Package Contents: 2 x Scrubber Note: Light reflection and differences in display screens may cause slight variations in color compared to the actual item. Measurement may vary by +/- 1-3 cm.