Techypro&reg; kit for Microfiber Shark Steam Pocket Mop, Replacement Rectangle Cleaning Pads S3550 S3501 S3601 S3901 (Set of 3) New replacement Microfiber Pad, Fit for shark Steam vacuum S3550 S3501 S3601 S3901 Triple-layer design and won't scratch or smear floor surfaces Size:12.6" x 7.1" Steam activated micro fibers loosen and lift dirt and grim Item includes 3 micro-fiber mop pads.