One step to clean and polish. Labor savings, reduces/eliminates the need to burnish. Highly durable and lasts 5X longer than traditional floor pads. More efficient cleaning than competing brands. Brightly colored wear indicator takes away the guesswork. Environmentally preferred with Green Seal® certification. Recycled polyester fiber. Versatile, can be used with many flooring substrates, coated/uncoated. Designed to be used wet on an autoscrubber or single-disk rotary machine. Reduces dust in work environment. Chemical free, works with just water. Blue/Yellow.