Sandpaper with black felt pad for attachment was supplied with the purchase of the original machine. With this "refill," you need to stick it to the back of the white buffer pads that the solution is applied to, poke a hole in the sandpaper, and flip the pad back and forth to use. This will make the tray look a little dirty when the buffer with the solution on it is facing down. It would also be helpful if four pads were included instead of the previous two. These solutions last longer than two baffle plates, which wear out very quickly. Overall, it's quite expensive for what you get, but I don't think there's a better drive repair system out there.
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