*macychic: i have that one too, i only use it for interior of cars, basically its the same as the big duster only difference i can think of would be the amount of paraffin wax it has. As far as i remember when i first opened my mini duster it wasn't as greasy as compared to the big duster. I think if you're planning on using that for the exterior i think it would be safe maybe the only difference would be that it might not pick up that much dirt as compared to the bigger duster not because the bigger duster is bigger but i think the paraffin wax in the duster also helps catch the dust. Basically i think its all the same in terms of materials only difference would be the amount of wax where the mini duster has a lot less