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 60C. Do not use bleach or fabric softener. Due to the hard bristles, heavy soiling on surfaces and in 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. 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 is included; other products are not included. Note: Lighting and different displays may cause slight color differences between the item in the picture and the actual item. Measurement error allowed is +/- 1-3 cm.