Only suitable for very robust hard surfaces such as stone or tiles, as the hard plastic bristles are embedded between the microfibers. Not suitable for soft surfaces such as wood or natural stone such as marble. Proportion of high-quality microfiber, machine washable up to 60 degrees Celsius. Do not use fabric softener. The hard bristles make it easy to clean heavy dirt on the surfaces and also in the joints. Thanks to the integrated bristles, the stone roller set effortlessly removes stubborn dirt and even shines joints and uneven surfaces. Fitment: for Krcher FC7; FC7; Lc5; Heart Rate 5; FC5 wireless; FC 5 wireless FC3 wireless; FC 3 Cordsless. Replace part number: 2.055021.0, 20550210. Color: Gray + White Material: Plastic Size: 60 x 150 mm Package contents: 4 * Stone roller brush 1 * Cleaning brush Only the package content shown above, other products are not included. Note: Light shooting and different monitors may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 13 cm.