High Quality:The mop heads replacement with 100% Super Absorbent Microfiber Strands has soft, absorbent strings that will not scratch floor surfaces. This mop replacement head is ideal for use in mopping all hard-surfaced floors. Specification: This mop replace head has the inner triangular rim size 3.9'' and the outer triangular rim size 5.7'' in diameter. This mop replacement fit for Vileda mop heads replacement and most standard spin mop that has a triangluar shape. Easy To Use:Mop heads replacements easy to attach and very sturdy, so you can thoroughly clean all your surfaces without fail, work effectively. Save your dollars and the environment. Multipurpose: The microfiber spin mop refill uses the power of microfiber to give your floors a deep clean. For dry and wet use. Best for the smooth surface floor, such as wooden floors, ceramic tile, laminate floors, marble floors and other sealed hard floors. Also can wash the car. Notes:Please make a measurement of your existing mop head for the diameter and shape before you place your order just in case it's not a perfect fit,and avoid wash the mop head by washing machine due to the middle support is make of plastic which can make Long service life.