Automatic Sponge Mop Refill With New DryShine Sponge Performs As Well As and Even Exceeds the Performance of Cellulose, Maintains Soft, Flexible Shape Wet or Dry, Sponge Won't Harden and Crack Like Cellulose, New Quick-Look Refill System Takes Just Seconds to Replace the Refill, Scrubber Strip Included, Refill Type S, Fits #045