STADEA Diamond Polishing Pad 4" Dry Grit 500 For Stone Glass (STADEA Standard A)

The product description is accurate. I used these pads for concrete countertops. Within three minutes of polishing with one of these pads, it was worn down to the fabric. I have no experience with wet grinders apart from concrete countertops, so these pads may be useful on other surfaces. However, if you are thinking about using these for concrete, you will want to reconsider.

good product - great price

Good quality, slightly soft.