Dust Runner won't scratch or mar fragile or delicate objects, and can squeeze into tight, hard to reach places to catch that pesky dust! There's no need to use chemical sprays because the naturally inherent oils in the genuine ostrich feathers attract and hold the dust within the feathers. When finished dusting, give Dust Runner a firm shake to clean. After Dust Runner fluffs its plumage, it's back on the trail and in pursuit of dust again!