If you own a Vileda EasyWring spin mop with the 2-tank system, these Butly scrub brush heads are an absolute game-changer for tough cleaning jobs! The 4-pack means you'll have replacements ready when needed. The triangular shape is brilliant for getting into corners and tight spaces that regular mops miss. Installation is super simple - just snap the brush onto your mop head base, and when you're done, pull the red handles to remove it. The stiff bristles are perfect for scrubbing grout lines, stuck-on dirt, soap scum in showers, and heavy buildup on floors. Made from durable PP and PET materials that stand up to repeated use without wearing down quickly. At 4.4x4.4 inches, the size is ideal for detailed scrubbing without being too small to be effective. Important note: These only work with the 2-tank Vileda system, not the older 1-tank models. Great for tile, marble, wooden, and concrete floors in kitchens, bathrooms, garages, and outdoor areas. If you've been struggling with tough stains or just want to make your cleaning routine more efficient, these scrub attachments turn your regular mop into a powerful cleaning tool. The value for four brushes is much better than buying replacements individually. Seriously, once you try cleaning with these scrub heads, you'll wonder how you managed without them!