I ordered these for my Shark S3601. You are too big. I just wiped them with a mop and had to hold the slack with clamps. When I measured their width, I got 7.75 inches. My originals measure just under 7 inches. This ad states the size as 6.8 inches. In addition, the fabric from which they are composed has a stretch factor. I had to push and pull as hard as I could to get the mop moving. When I took it off and turned it inside out and compared it to the originals, I couldn't see any of the padding that the original has. When I pulled on the fabric, it stretched, but the original upholstery didn't. Also, I don't think they sent me the same ones shown in this ad. Mine had no manufacturer's label at all. This ad shows that it should contain an AI vacuum tag. I'll be back. Very disappointed. The first photo shows the inside of this pillow. not sewn as in the promotional photos, also the purple ribbon is lighter in color. shark model. The last photo shows the measured difference between these pads and the original that came with the kit. h my shark. The original is tight. ATTENTION - do not buy. They don't send what they advertised. I-clean 6 Pcs Replacement Shark Lift Away Professional Steam Pocket Mops for S3550 S3901 S3601 S3501 Household Replacement Washable Microfiber Cleaning Pads