Swiffer Disposable Cleaning Dusters Refills, Unscented, 16-Count (Packaging May Vary) by Swiffer (91) Buy new: $19.04 $11.19 7 used & new from $5.61 (Visit the Best Sellers in Power & Hand Tools list for authoritative information on this product’s current rank.)

Here is the original:
#6: Swiffer Disposable Cleaning Dusters Refills, Unscented, 16-Count (Packaging May Vary)