Hey there! If your Shark steam mop pads are looking worn out, this 4-pack of replacement pads is exactly what you need. They're designed specifically for Shark Steam Pocket Mop models like the S3500, S3501, S3601, S3550, S3801, S3901, SE400, and SE450—so you know they'll fit perfectly. Made from a thick, absorbent blend of 80% polyester and 20% polyamide, these pads have a handy sandwich mesh lining that lets steam through easily for a deeper clean. Plus, they've got built-in scrub strips to tackle tough stains on hardwood, laminate, tile, vinyl, and other sealed hard floors. The Velcro closure is strong and secure, and the best part? They're machine washable and reusable, so you can save money and cut down on waste. Just toss them in the wash when they're dirty and they'll be good as new. Great for daily cleaning around the house, kitchen, or office. If you have any questions or issues, the seller offers helpful customer support. Keep your floors sparkling without breaking the bank!