This is the replacement for my feather duster. The first advantage is that iT doesn’t lose feathers in nooks and crannies! All else is marvelous. The cleaning ladies love it and seems to keep dust away after using. Washing is problematic – you should use a lingerie/sweater bag to keep it separate from the rest of the wash, otherwise the small portion of the duster which is plastic will catch on things (be sure you know to separate handle from duster with the release button first). I just love this duster and will buy another one. Since it’s new I’ve no idea of the “shelf life”. Hopefully it will last at least a year before being replaced.