1. Compatible: Set of 8pcs microfiber spray mop replacement heads in the size of 16.5x5.5 inch, compatible with spray mop and reveal mops. Fits 15 inch velcro mop frames and hardware. (Tips: To protect the product during shipping, we have vacuum packed the product. Please soak the mop pads for 5 10 minutes before first use, then they can restore the thickness and stickiness.) 2. Wet and Dry Use: These microfiber mop refills have super water absorption and decontamination ability, making cleaning easy. These reusable pads can be used not only dry but also wet. For dry use, the thicken microfiber pads can easily remove dust and absorb hair. For wet use, it can easily remove water stains, oil stains, etc. These spray mop pads can meet your home and commercial demand. 3. Reusable and Machine Washable: Our reusable mop pads are machine washable. They can be washed up to 100 times, which saves money and reduces waste. 4. Widely Use on Most Floors: Our floor mops are suitable for most floor surfaces, like wood floors, composite floors, tile floors, glass, laminate, ceramic, marble, etc. They are friendly to the floor and will not damage the floor.