Usage Tips:Fitment: for FC7; FC7 Premium; FC5; FC 5 Premium; FC 5 Wireless; FC 5 Premium Wireless; FC3 Wireless; FC 3 Premium Wireless Only suitable for very robust hard surfaces such as stone or tiles, as hard plastic bristles are incorporated between the microfibres; not suitable for soft surfaces such as wood or natural such as marble. microfibre, machine washable up to 60C, do not use . The hard bristles 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 also allows joints and uneven surfaces to shine. The wheels are quick and easy to put on and so you can wash both hard floors at the same time and vacuum, leaving them perfectly dry in minutes. Specifications: Replacement Part Number:2.055-021.0, 20550210 Size:150 x 60mm Material: plastic+velvet Color: as shown Package Contents: 4 x roller brush Only the above package content, other products are not included. Note: Light 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.