SPIN MOP REPLACEMENT HEADS: Made from 100% super soft absorbent microfiber strands; Absorbent strings that will not scratch floor surfaces and it removes tough dirt and grime for a steak-free clean, this mop refill is ideal for use in mopping all hard floor surface without scratching. 10 PACK MOP REPLACE HEAD: The soft and flexible mop replacement heads are perfect exact fit for triangle spin mop system for Easy Wring 1 Tank. Inner triangular rim size 3.9" and the outer triangular rim size 5.7" in diameter. VERSATILE SPINNING MOP REPLACE HEAD: Both for wet and dry use, the spin mop refill are multi-use so you can use it on tile and wood floors as well as window and car. Best for smooth surface floor, such as wooden floors, ceramic tile, laminate floors, marble floors and other sealed hard floors. EASY WRING MICROFIBER MOP HEADS: Designed of 360 degree spin mop head allows for better corner cleaning, which can be easy for cleaning hard to reach corner or under furniture,