I had an identically-designed drum that was sold by DeWalt back when they made radial arm saws. It's a great idea. These don't require pre-made sleeves, you just cut strips of regular paper. So you will never be stuck because you don't have a sleeve. These work well. Not perfect, because as usual, don't even bother with the included sandpaper. It's useless, but the drums are a good thing to have. I paid $20, which seems steep but I spend use drums a lot and am always out of sleeves. Would be good if they came in some sort of package you could use for storage.