3M Scotch-Brite? Clean & Shine Floor Pads 2-in-1 daily cleaning pad for low-speed scrubbers that gradually increases shine with repeated use. Cleans and shines in the same step, using only a low-speed scrubber Save costs and labour by reducing or eliminating the need to burnish Removes black marks 3 times faster than traditional cleaning pads Two-sided pad lasts longer than traditional cleaning pads Effective on most coated and uncoated hard floors including VCT, vinyl, rubber, marble, stone, terrazzo, granite, and concrete with only water or neutral cleaner Specifications Center Hole - Yes Center Hole Diameter (Metric) - 8.5 cm Machine Speed - 150-3000 RPM Material - Non-Woven Polyester Fibre Pack Quantity - 5/Pack Recommended Surfaces - VCT Sizes - 15", 17", 20" Shape - Round Surface Type - Concrete/Marble/Terrazzo, Linoleum, Resilient, Sheet Vinyl, Stone, VCT Thickness (Metric) - 25.4 mm