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 like marble. High-quality microfiber, machine washable up to 60 degrees Celsius. Do not use fabric softener. Due to the hard bristles, heavy soiling on surfaces and in joints can be easily cleaned. Thanks to the integrated bristles, the roller set effortlessly removes stubborn dirt and makes even joints and uneven surfaces shine. Compatibility: For FC7, FC7 Premium, FC5, FC5 Premium, FC5 cordless, FC5 Premium cordless, FC3 cordless, FC3 Premium cordless. Replacement Part Numbers: 2.055-021.0, 20550210. Color: As shown. Material: Plastic. Size: 14.5 cm. Package Contents: 4 x Roller Brush, 1 x Cleaning Brush. Only the above package content; other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to vary slightly from the real thing. Measurement allowance is +/- 1-3 cm.