Cyclo (76-840x2-2PK) Shampoo Brush with White Soft Bristles, (Pack of 2) White standard carpet brush is recommended for auto and RV carpets and interiors, cleaning tile and grout, and durable carpets Cyclo's must-have brush. The white brush is designed for more vigorous cleaning and recommended for floor mats and more durable carpets. The White Standard Carpet Brush is stiffer and less giving, but more durable than the Aqua Soft Carpet Brush Use genuine cyclo brushes to bring life back into worn carpet pile, to safely remove stains from rugs and headliners, or to clean-up upholstery 5/16-24 inch male thread means this brush useable on other single-head orbital machines such as Porter-Cable 7424XP. Secure metal stud mounting rather than hook and loop methods found on other machine brushes