The color of the pads are as follows:
Red: 400 Grit
Blue: 800 Grit
Yellow: 1500 Grit
Green: 3000 Grit
These pads are a revolutionary polishing and maintaining system that uses a system process with special diamond grit pads and can be used on Concrete, Terrazzo, Marble, Natural Stone, Vinyl and Epoxy.
Universal fit for most machines. High speed machine is recommended for these pads.