4" 5-Step Dry Polishing PadThese 5 step dry polishing pads are most flexible and cost efficient. Only 5 steps. Less steps can save lots of time. Suitable for all natural stones. Make your stone surface most shining, without any scratches.With velcro back. And velcro color can be changed as requested.Very flexible.RPM: 4000. Use with variable speed grinder or polisherOne set including Pos.1,Pos.2,Pos.3,Pos.4,Pos.5Available sizes: 4"Thickness:2.0mmDry use.Item No.SizeGrit No.Velcro ColorThicknessC1001004"/100mmPos.1Yellow2.0mmC100101Pos.2  RedC100102Pos.3  GreenC100103Pos.4  Light BlueC100104Pos.5  White