The scrub pads feature a fleece fabric loop backing that securely attaches to hook-and-loop drill attachments. They are easy to clean and store—simply rinse after use and keep in a clean, dry place for repeated reuse. Attach the pads to your drill for effective cleaning results. The kit includes a 1/4 inch metal shaft compatible with most drills. Use with a backing pad to quickly remove soap scum, hard water stains, mineral deposits, and grime from kitchens and bathrooms. The red pads offer high abrasion for efficient cleaning of bathroom and kitchen floors; brown pads provide medium stiffness; green pads deliver heavy-duty scrubbing power. All pads are suitable for cleaning various indoor and outdoor surfaces, including tiles, tubs, glass, stone, porcelain, showers, bathtubs, and sinks. Color: Red, Green, Gray. Material: Scouring pad. Size: Approximately 100mm in diameter. Package Contents: 5 x Red matte pad, 5 x Green frosting pad, 5 x Gray matte pad, 1 x 4 inch suction cup (with 1/4 inch extension rod). Note: Other items not included. Lighting and display differences may cause slight color variations between the image and actual item. Measurement may vary by +/- 1-3cm.