Only suitable for very robust hard surfaces such as stone or tiles, as hard plastic bristles are incorporated between the microfibers; Not suitable for soft surfaces such as wood or natural stones such as marble. Percent microfiber, machine washable up to 60 Celsius. Do not use fabric softener. Due to the hard bristles, heavy soiling on the surfaces and also in the joints can be easily cleaned. Thanks to the integrated bristles, the stone roller set effortlessly removes stubborn dirt and makes even joints and uneven surfaces shine. Fitment: For Karcher FC7; FC7 Premium; FC5; FC 5 Premium; FC 5 cordless; FC 5 Premium cordless; FC3 cordless; FC 3 Premium cordless. Replace Part Number: 2.055-021.0, 20550210. Colour:As Shown Material:Microfiber Package Contents: 4 x Multi-Surface Roller Brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.