Because the size of buff is small, I think that it is suitable for small area and fine work. For simple polishing of vehicles such as pale colors, it is possible to finish beautifully with only specific compound. If it gets hooked at a corner etc. even a little, the buff turns out to be broken soon, but if you work carefully you will have no problem.
Just using it for about 2 hours, the sponge and the Velcro stick were disengaged! It was about to scratch the car a little more! It will not be usable anymore! Even if it is cheap, it is meaningless without durability.