Dense "Ultra-Fine" quality fiber removes more dust, dirt and bacteria than conventional cleaning products. Advanced hook-and-loop backing holds-up under harsh laundering conditions and attaches pads more securely. Scratch-resistant scrubber flap to remove stubborn spots or heel marks. Durable pad construction is third party tested tough and withstands more than 300 launderings. Double finished edges retain pad shape with use over time. Mop Head Type: N/A; Mop Head Style: N/A; Mop Head Size: N/A; Mop Head Color: N/A.